On callout avoid SIZE every time but noncacheable rcpt main-verify. Bug 2151

19 files changed, 344 insertions, 103 deletions

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index c5de41961..cc0b90134 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -132,6 +132,10 @@ JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
       cache-hot.  Previously, although the result was properly cached, the
       initial verify call returned a defer.
 
+JH/21 Bug 2151 (partial):
+                Avoid using SIZE on the MAIL for a callout verify, on any but
+      the main verify for receipient in uncached-mode.
+
 
 Exim version 4.89
 -----------------
diff --git a/src/src/deliver.c b/src/src/deliver.c
index bf465c977..49281f93d 100644
--- a/src/src/deliver.c
+++ b/src/src/deliver.c
@@ -8474,7 +8474,7 @@ if (cutthrough.fd >= 0 && cutthrough.callout_hold_only)
 #ifdef SUPPORT_TLS
   if (cutthrough.is_tls)
     {
-    smtp_peer_options |= PEER_OFFERED_TLS;
+    smtp_peer_options |= OPTION_TLS;
     sending_ip_address = cutthrough.snd_ip;
     sending_port = cutthrough.snd_port;
 
diff --git a/src/src/exim.c b/src/src/exim.c
index 0285e162a..37cf8bc6e 100644
--- a/src/src/exim.c
+++ b/src/src/exim.c
@@ -2738,7 +2738,7 @@ for (i = 1; i < argc; i++)
     /* -MCD: set the smtp_use_dsn flag; this indicates that the host
        that exim is connected to supports the esmtp extension DSN */
 
-	case 'D': smtp_peer_options |= PEER_OFFERED_DSN; break;
+	case 'D': smtp_peer_options |= OPTION_DSN; break;
 
     /* -MCG: set the queue name, to a non-default value */
 
@@ -2748,12 +2748,12 @@ for (i = 1; i < argc; i++)
 
     /* -MCK: the peer offered CHUNKING.  Must precede -MC */
 
-	case 'K': smtp_peer_options |= PEER_OFFERED_CHUNKING; break;
+	case 'K': smtp_peer_options |= OPTION_CHUNKING; break;
 
     /* -MCP: set the smtp_use_pipelining flag; this is useful only when
     it preceded -MC (see above) */
 
-	case 'P': smtp_peer_options |= PEER_OFFERED_PIPE; break;
+	case 'P': smtp_peer_options |= OPTION_PIPE; break;
 
     /* -MCQ: pass on the pid of the queue-running process that started
     this chain of deliveries and the fd of its synchronizing pipe; this
@@ -2768,7 +2768,7 @@ for (i = 1; i < argc; i++)
     /* -MCS: set the smtp_use_size flag; this is useful only when it
     precedes -MC (see above) */
 
-	case 'S': smtp_peer_options |= PEER_OFFERED_SIZE; break;
+	case 'S': smtp_peer_options |= OPTION_SIZE; break;
 
 #ifdef SUPPORT_TLS
     /* -MCt: similar to -MCT below but the connection is still open
@@ -2788,7 +2788,7 @@ for (i = 1; i < argc; i++)
     precedes -MC (see above). The flag indicates that the host to which
     Exim is connected has offered TLS support. */
 
-	case 'T': smtp_peer_options |= PEER_OFFERED_TLS; break;
+	case 'T': smtp_peer_options |= OPTION_TLS; break;
 #endif
 
 	default:  badarg = TRUE; break;
diff --git a/src/src/macros.h b/src/src/macros.h
index 8b608f7f8..a8022adf6 100644
--- a/src/src/macros.h
+++ b/src/src/macros.h
@@ -972,14 +972,14 @@ enum { FILTER_UNSET, FILTER_FORWARD, FILTER_EXIM, FILTER_SIEVE };
 
 /* Codes for ESMTP facilities offered by peer */
 
-#define PEER_OFFERED_TLS	BIT(0)
-#define PEER_OFFERED_IGNQ	BIT(1)
-#define PEER_OFFERED_PRDR	BIT(2)
-#define PEER_OFFERED_UTF8	BIT(3)
-#define PEER_OFFERED_DSN	BIT(4)
-#define PEER_OFFERED_PIPE	BIT(5)
-#define PEER_OFFERED_SIZE	BIT(6)
-#define PEER_OFFERED_CHUNKING	BIT(7)
+#define OPTION_TLS	BIT(0)
+#define OPTION_IGNQ	BIT(1)
+#define OPTION_PRDR	BIT(2)
+#define OPTION_UTF8	BIT(3)
+#define OPTION_DSN	BIT(4)
+#define OPTION_PIPE	BIT(5)
+#define OPTION_SIZE	BIT(6)
+#define OPTION_CHUNKING	BIT(7)
 
 /* Argument for *_getc */
 
diff --git a/src/src/transport.c b/src/src/transport.c
index 6590fa7fb..b26251c88 100644
--- a/src/src/transport.c
+++ b/src/src/transport.c
@@ -1866,12 +1866,12 @@ but we have a number of extras that may be added. */
 argv = CUSS child_exec_exim(CEE_RETURN_ARGV, TRUE, &i, FALSE, 0);
 
 if (smtp_authenticated)				argv[i++] = US"-MCA";
-if (smtp_peer_options & PEER_OFFERED_CHUNKING)	argv[i++] = US"-MCK";
-if (smtp_peer_options & PEER_OFFERED_DSN)	argv[i++] = US"-MCD";
-if (smtp_peer_options & PEER_OFFERED_PIPE)	argv[i++] = US"-MCP";
-if (smtp_peer_options & PEER_OFFERED_SIZE)	argv[i++] = US"-MCS";
+if (smtp_peer_options & OPTION_CHUNKING)	argv[i++] = US"-MCK";
+if (smtp_peer_options & OPTION_DSN)		argv[i++] = US"-MCD";
+if (smtp_peer_options & OPTION_PIPE)		argv[i++] = US"-MCP";
+if (smtp_peer_options & OPTION_SIZE)		argv[i++] = US"-MCS";
 #ifdef SUPPORT_TLS
-if (smtp_peer_options & PEER_OFFERED_TLS)
+if (smtp_peer_options & OPTION_TLS)
   if (tls_out.active >= 0 || continue_proxy_cipher)
     {
     argv[i++] = US"-MCt";
diff --git a/src/src/transports/smtp.c b/src/src/transports/smtp.c
index 477cdac4d..11a996c65 100644
--- a/src/src/transports/smtp.c
+++ b/src/src/transports/smtp.c
@@ -1316,44 +1316,44 @@ ehlo_response(uschar * buf, uschar checks)
 size_t bsize = Ustrlen(buf);
 
 #ifdef SUPPORT_TLS
-if (  checks & PEER_OFFERED_TLS
+if (  checks & OPTION_TLS
    && pcre_exec(regex_STARTTLS, NULL, CS buf, bsize, 0, PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_TLS;
+  checks &= ~OPTION_TLS;
 #endif
 
-if (  checks & PEER_OFFERED_IGNQ
+if (  checks & OPTION_IGNQ
    && pcre_exec(regex_IGNOREQUOTA, NULL, CS buf, bsize, 0,
 		PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_IGNQ;
+  checks &= ~OPTION_IGNQ;
 
-if (  checks & PEER_OFFERED_CHUNKING
+if (  checks & OPTION_CHUNKING
    && pcre_exec(regex_CHUNKING, NULL, CS buf, bsize, 0, PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_CHUNKING;
+  checks &= ~OPTION_CHUNKING;
 
 #ifndef DISABLE_PRDR
-if (  checks & PEER_OFFERED_PRDR
+if (  checks & OPTION_PRDR
    && pcre_exec(regex_PRDR, NULL, CS buf, bsize, 0, PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_PRDR;
+  checks &= ~OPTION_PRDR;
 #endif
 
 #ifdef SUPPORT_I18N
-if (  checks & PEER_OFFERED_UTF8
+if (  checks & OPTION_UTF8
    && pcre_exec(regex_UTF8, NULL, CS buf, bsize, 0, PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_UTF8;
+  checks &= ~OPTION_UTF8;
 #endif
 
-if (  checks & PEER_OFFERED_DSN
+if (  checks & OPTION_DSN
    && pcre_exec(regex_DSN, NULL, CS buf, bsize, 0, PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_DSN;
+  checks &= ~OPTION_DSN;
 
-if (  checks & PEER_OFFERED_PIPE
+if (  checks & OPTION_PIPE
    && pcre_exec(regex_PIPELINING, NULL, CS buf, bsize, 0,
 		PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_PIPE;
+  checks &= ~OPTION_PIPE;
 
-if (  checks & PEER_OFFERED_SIZE
+if (  checks & OPTION_SIZE
    && pcre_exec(regex_SIZE, NULL, CS buf, bsize, 0, PCRE_EOPT, NULL, 0) < 0)
-  checks &= ~PEER_OFFERED_SIZE;
+  checks &= ~OPTION_SIZE;
 
 return checks;
 }
@@ -1512,6 +1512,7 @@ sx->dane_required = verify_check_given_host(&sx->ob->hosts_require_dane, sx->hos
 
 if ((sx->max_rcpt = sx->tblock->max_addresses) == 0) sx->max_rcpt = 999999;
 sx->peer_offered = 0;
+sx->avoid_option = 0;
 sx->igquotstr = US"";
 if (!sx->helo_data) sx->helo_data = sx->ob->helo_data;
 #ifdef EXPERIMENTAL_DSN_INFO
@@ -1753,7 +1754,7 @@ goto SEND_QUIT;
 #ifdef SUPPORT_TLS
   if (sx->smtps)
     {
-    smtp_peer_options |= PEER_OFFERED_TLS;
+    smtp_peer_options |= OPTION_TLS;
     suppress_tls = FALSE;
     sx->ob->tls_tempfail_tryclear = FALSE;
     smtp_command = US"SSL-on-connect";
@@ -1818,18 +1819,18 @@ goto SEND_QUIT;
       }
     }
 
-  sx->peer_offered = smtp_peer_options = 0;
+  sx->avoid_option = sx->peer_offered = smtp_peer_options = 0;
 
   if (sx->esmtp || sx->lmtp)
     {
     sx->peer_offered = ehlo_response(sx->buffer,
-      PEER_OFFERED_TLS	/* others checked later */
+      OPTION_TLS	/* others checked later */
       );
 
   /* Set tls_offered if the response to EHLO specifies support for STARTTLS. */
 
 #ifdef SUPPORT_TLS
-    smtp_peer_options |= sx->peer_offered & PEER_OFFERED_TLS;
+    smtp_peer_options |= sx->peer_offered & OPTION_TLS;
 #endif
     }
   }
@@ -1871,7 +1872,7 @@ else
      )
     {
     sx->peer_offered = smtp_peer_options;
-    pipelining_active = !!(smtp_peer_options & PEER_OFFERED_PIPE);
+    pipelining_active = !!(smtp_peer_options & OPTION_PIPE);
     HDEBUG(D_transport) debug_printf("continued connection, %s TLS\n",
       continue_proxy_cipher ? "proxied" : "verify conn with");
     return OK;
@@ -1888,7 +1889,7 @@ the client not be required to use TLS. If the response is bad, copy the buffer
 for error analysis. */
 
 #ifdef SUPPORT_TLS
-if (  smtp_peer_options & PEER_OFFERED_TLS
+if (  smtp_peer_options & OPTION_TLS
    && !suppress_tls
    && verify_check_given_host(&sx->ob->hosts_avoid_tls, sx->host) != OK
    && (  !sx->verify
@@ -2034,7 +2035,7 @@ else if (  sx->smtps
   {
   errno = ERRNO_TLSREQUIRED;
   message = string_sprintf("a TLS session is required, but %s",
-    smtp_peer_options & PEER_OFFERED_TLS
+    smtp_peer_options & OPTION_TLS
     ? "an attempt to start TLS failed" : "the server did not offer TLS support");
   goto TLS_FAILED;
   }
@@ -2055,60 +2056,60 @@ if (continue_hostname == NULL
     {
     sx->peer_offered = ehlo_response(sx->buffer,
 	0 /* no TLS */
-	| (sx->lmtp && sx->ob->lmtp_ignore_quota ? PEER_OFFERED_IGNQ : 0)
-	| PEER_OFFERED_CHUNKING
-	| PEER_OFFERED_PRDR
+	| (sx->lmtp && sx->ob->lmtp_ignore_quota ? OPTION_IGNQ : 0)
+	| OPTION_CHUNKING
+	| OPTION_PRDR
 #ifdef SUPPORT_I18N
-	| (sx->addrlist->prop.utf8_msg ? PEER_OFFERED_UTF8 : 0)
+	| (sx->addrlist->prop.utf8_msg ? OPTION_UTF8 : 0)
 	  /*XXX if we hand peercaps on to continued-conn processes,
 		must not depend on this addr */
 #endif
-	| PEER_OFFERED_DSN
-	| PEER_OFFERED_PIPE
-	| (sx->ob->size_addition >= 0 ? PEER_OFFERED_SIZE : 0)
+	| OPTION_DSN
+	| OPTION_PIPE
+	| (sx->ob->size_addition >= 0 ? OPTION_SIZE : 0)
       );
 
     /* Set for IGNOREQUOTA if the response to LHLO specifies support and the
     lmtp_ignore_quota option was set. */
 
-    sx->igquotstr = sx->peer_offered & PEER_OFFERED_IGNQ ? US" IGNOREQUOTA" : US"";
+    sx->igquotstr = sx->peer_offered & OPTION_IGNQ ? US" IGNOREQUOTA" : US"";
 
     /* If the response to EHLO specified support for the SIZE parameter, note
     this, provided size_addition is non-negative. */
 
-    smtp_peer_options |= sx->peer_offered & PEER_OFFERED_SIZE;
+    smtp_peer_options |= sx->peer_offered & OPTION_SIZE;
 
     /* Note whether the server supports PIPELINING. If hosts_avoid_esmtp matched
     the current host, esmtp will be false, so PIPELINING can never be used. If
     the current host matches hosts_avoid_pipelining, don't do it. */
 
-    if (  sx->peer_offered & PEER_OFFERED_PIPE
+    if (  sx->peer_offered & OPTION_PIPE
        && verify_check_given_host(&sx->ob->hosts_avoid_pipelining, sx->host) != OK)
-      smtp_peer_options |= PEER_OFFERED_PIPE;
+      smtp_peer_options |= OPTION_PIPE;
 
     DEBUG(D_transport) debug_printf("%susing PIPELINING\n",
-      smtp_peer_options & PEER_OFFERED_PIPE ? "" : "not ");
+      smtp_peer_options & OPTION_PIPE ? "" : "not ");
 
-    if (  sx->peer_offered & PEER_OFFERED_CHUNKING
+    if (  sx->peer_offered & OPTION_CHUNKING
        && verify_check_given_host(&sx->ob->hosts_try_chunking, sx->host) != OK)
-      sx->peer_offered &= ~PEER_OFFERED_CHUNKING;
+      sx->peer_offered &= ~OPTION_CHUNKING;
 
-    if (sx->peer_offered & PEER_OFFERED_CHUNKING)
+    if (sx->peer_offered & OPTION_CHUNKING)
       {DEBUG(D_transport) debug_printf("CHUNKING usable\n");}
 
 #ifndef DISABLE_PRDR
-    if (  sx->peer_offered & PEER_OFFERED_PRDR
+    if (  sx->peer_offered & OPTION_PRDR
        && verify_check_given_host(&sx->ob->hosts_try_prdr, sx->host) != OK)
-      sx->peer_offered &= ~PEER_OFFERED_PRDR;
+      sx->peer_offered &= ~OPTION_PRDR;
 
-    if (sx->peer_offered & PEER_OFFERED_PRDR)
+    if (sx->peer_offered & OPTION_PRDR)
       {DEBUG(D_transport) debug_printf("PRDR usable\n");}
 #endif
 
     /* Note if the server supports DSN */
-    smtp_peer_options |= sx->peer_offered & PEER_OFFERED_DSN;
+    smtp_peer_options |= sx->peer_offered & OPTION_DSN;
     DEBUG(D_transport) debug_printf("%susing DSN\n",
-			sx->peer_offered & PEER_OFFERED_DSN ? "" : "not ");
+			sx->peer_offered & OPTION_DSN ? "" : "not ");
 
     /* Note if the response to EHLO specifies support for the AUTH extension.
     If it has, check that this host is one we want to authenticate to, and do
@@ -2125,7 +2126,7 @@ if (continue_hostname == NULL
       }
     }
   }
-pipelining_active = !!(smtp_peer_options & PEER_OFFERED_PIPE);
+pipelining_active = !!(smtp_peer_options & OPTION_PIPE);
 
 /* The setting up of the SMTP call is now complete. Any subsequent errors are
 message-specific. */
@@ -2143,7 +2144,7 @@ if (sx->addrlist->prop.utf8_msg)
   }
 
 /* If this is an international message we need the host to speak SMTPUTF8 */
-if (sx->utf8_needed && !(sx->peer_offered & PEER_OFFERED_UTF8))
+if (sx->utf8_needed && !(sx->peer_offered & OPTION_UTF8))
   {
   errno = ERRNO_UTF8_FWD;
   goto RESPONSE_FAILED;
@@ -2270,14 +2271,15 @@ int address_count;
 
 *p = 0;
 
-/* If we know the receiving MTA supports the SIZE qualification,
+/* If we know the receiving MTA supports the SIZE qualification, and we know it,
 send it, adding something to the message size to allow for imprecision
 and things that get added en route. Exim keeps the number of lines
 in a message, so we can give an accurate value for the original message, but we
 need some additional to handle added headers. (Double "." characters don't get
 included in the count.) */
 
-if (sx->peer_offered & PEER_OFFERED_SIZE)
+if (  message_size > 0
+   && sx->peer_offered & OPTION_SIZE && !(sx->avoid_option & OPTION_SIZE))
   {
 /*XXX problem here under spool_files_wireformat?
 Or just forget about lines?  Or inflate by a fixed proportion? */
@@ -2291,7 +2293,7 @@ Or just forget about lines?  Or inflate by a fixed proportion? */
 request that */
 
 sx->prdr_active = FALSE;
-if (sx->peer_offered & PEER_OFFERED_PRDR)
+if (sx->peer_offered & OPTION_PRDR)
   for (addr = addrlist; addr; addr = addr->next)
     if (addr->transport_return == PENDING_DEFER)
       {
@@ -2310,7 +2312,7 @@ if (sx->peer_offered & PEER_OFFERED_PRDR)
 /* If it supports internationalised messages, and this meesage need that,
 request it */
 
-if (  sx->peer_offered & PEER_OFFERED_UTF8
+if (  sx->peer_offered & OPTION_UTF8
    && addrlist->prop.utf8_msg
    && !addrlist->prop.utf8_downcvt
    )
@@ -2332,7 +2334,7 @@ for (sx->dsn_all_lasthop = TRUE, addr = addrlist, address_count = 0;
 
 /* Add any DSN flags to the mail command */
 
-if (sx->peer_offered & PEER_OFFERED_DSN && !sx->dsn_all_lasthop)
+if (sx->peer_offered & OPTION_DSN && !sx->dsn_all_lasthop)
   {
   if (dsn_ret == dsn_ret_hdrs)
     { Ustrcpy(p, " RET=HDRS"); p += 9; }
@@ -2368,7 +2370,7 @@ uschar * p = sx->buffer;
 
 /* Add any DSN flags to the rcpt command */
 
-if (sx->peer_offered & PEER_OFFERED_DSN && !(addr->dsn_flags & rf_dsnlasthop))
+if (sx->peer_offered & OPTION_DSN && !(addr->dsn_flags & rf_dsnlasthop))
   {
   if (addr->dsn_flags & rf_dsnflags)
     {
@@ -2438,7 +2440,7 @@ sx->pending_MAIL = TRUE;     /* The block starts with MAIL */
   the delivery log line. */
 
   if (  sx->addrlist->prop.utf8_msg
-     && (sx->addrlist->prop.utf8_downcvt || !(sx->peer_offered & PEER_OFFERED_UTF8))
+     && (sx->addrlist->prop.utf8_downcvt || !(sx->peer_offered & OPTION_UTF8))
      )
     {
     if (s = string_address_utf8_to_alabel(s, &errstr), errstr)
@@ -2502,7 +2504,7 @@ for (addr = sx->first_addr, address_count = 0;
   BOOL no_flush;
   uschar * rcpt_addr;
 
-  addr->dsn_aware = sx->peer_offered & PEER_OFFERED_DSN
+  addr->dsn_aware = sx->peer_offered & OPTION_DSN
     ? dsn_support_yes : dsn_support_no;
 
   address_count++;
@@ -2762,10 +2764,10 @@ if (tblock->filter_command)
   if (  transport_filter_argv
      && *transport_filter_argv
      && **transport_filter_argv
-     && sx.peer_offered & PEER_OFFERED_CHUNKING
+     && sx.peer_offered & OPTION_CHUNKING
      )
     {
-    sx.peer_offered &= ~PEER_OFFERED_CHUNKING;
+    sx.peer_offered &= ~OPTION_CHUNKING;
     DEBUG(D_transport) debug_printf("CHUNKING not usable due to transport filter\n");
     }
   }
@@ -2847,7 +2849,7 @@ are pipelining. The responses are all handled by sync_responses().
 If using CHUNKING, do not send a BDAT until we know how big a chunk we want
 to send is. */
 
-if (  !(sx.peer_offered & PEER_OFFERED_CHUNKING)
+if (  !(sx.peer_offered & OPTION_CHUNKING)
    && (sx.ok || (pipelining_active && !mua_wrapper)))
   {
   int count = smtp_write_command(&sx.outblock, SCMD_FLUSH, "DATA\r\n");
@@ -2877,7 +2879,7 @@ for handling the SMTP dot-handling protocol, flagging to apply to headers as
 well as body. Set the appropriate timeout value to be used for each chunk.
 (Haven't been able to make it work using select() for writing yet.) */
 
-if (!(sx.peer_offered & PEER_OFFERED_CHUNKING) && !sx.ok)
+if (!(sx.peer_offered & OPTION_CHUNKING) && !sx.ok)
   {
   /* Save the first address of the next batch. */
   sx.first_addr = sx.next_addr;
@@ -2904,7 +2906,7 @@ else
   of responses.  The callback needs a whole bunch of state so set up
   a transport-context structure to be passed around. */
 
-  if (sx.peer_offered & PEER_OFFERED_CHUNKING)
+  if (sx.peer_offered & OPTION_CHUNKING)
     {
     tctx.check_string = tctx.escape_string = NULL;
     tctx.options |= topt_use_bdat;
@@ -2929,7 +2931,7 @@ else
   transport_write_timeout = sx.ob->data_timeout;
   smtp_command = US"sending data block";   /* For error messages */
   DEBUG(D_transport|D_v)
-    if (sx.peer_offered & PEER_OFFERED_CHUNKING)
+    if (sx.peer_offered & OPTION_CHUNKING)
       debug_printf("         will write message using CHUNKING\n");
     else
       debug_printf("  SMTP>> writing message and terminating \".\"\n");
@@ -2964,7 +2966,7 @@ else
 
   smtp_command = US"end of data";
 
-  if (sx.peer_offered & PEER_OFFERED_CHUNKING && sx.cmd_count > 1)
+  if (sx.peer_offered & OPTION_CHUNKING && sx.cmd_count > 1)
     {
     /* Reap any outstanding MAIL & RCPT commands, but not a DATA-go-ahead */
     switch(sync_responses(&sx, sx.cmd_count-1, 0))
@@ -3119,7 +3121,7 @@ else
 #ifndef DISABLE_PRDR
       if (sx.prdr_active) addr->flags |= af_prdr_used;
 #endif
-      if (sx.peer_offered & PEER_OFFERED_CHUNKING) addr->flags |= af_chunking_used;
+      if (sx.peer_offered & OPTION_CHUNKING) addr->flags |= af_chunking_used;
       flag = '-';
 
 #ifndef DISABLE_PRDR
@@ -3441,7 +3443,7 @@ if (sx.completed_addr && sx.ok && sx.send_quit)
 	  {
 	  /* Set up a pipe for proxying TLS for the new transport process */
 
-	  smtp_peer_options |= PEER_OFFERED_TLS;
+	  smtp_peer_options |= OPTION_TLS;
 	  if (sx.ok = (socketpair(AF_UNIX, SOCK_STREAM, 0, pfd) == 0))
 	    socket_fd = pfd[1];
 	  else
diff --git a/src/src/transports/smtp.h b/src/src/transports/smtp.h
index 88b608bcc..c965a72a7 100644
--- a/src/src/transports/smtp.h
+++ b/src/src/transports/smtp.h
@@ -130,6 +130,7 @@ typedef struct {
   int		cmd_count;
 
   uschar	peer_offered;
+  uschar	avoid_option;
   uschar *	igquotstr;
   uschar *	helo_data;
 #ifdef EXPERIMENTAL_DSN_INFO
diff --git a/src/src/verify.c b/src/src/verify.c
index cda0b72e2..6c71d7feb 100644
--- a/src/src/verify.c
+++ b/src/src/verify.c
@@ -785,8 +785,12 @@ tls_retry_connection:
       postmaster-verify.
       The sync_responses() would need to be taught about it and we'd
       need another return code filtering out to here.
+
+      Avoid using a SIZE option on the MAIL for all randon-rcpt checks.
       */
 
+      sx.avoid_option = OPTION_SIZE;
+
       /* Remember when we last did a random test */
       new_domain_record.random_stamp = time(NULL);
 
@@ -798,8 +802,9 @@ tls_retry_connection:
 	    yield = OK;		/* Only usable result we can return */
 	    done = TRUE;
 	    goto no_conn;
-	  case FAIL:
+	  case FAIL:		/* the preferred result */
 	    new_domain_record.random_result = ccache_reject;
+	    sx.avoid_option = 0;
 
 	    /* Between each check, issue RSET, because some servers accept only
 	    one recipient after MAIL FROM:<>.
@@ -844,12 +849,14 @@ tls_retry_connection:
     else
       done = TRUE;
 
-    /* Main verify. If the host is accepting all local parts, as determined
-    by the "random" check, we don't need to waste time doing any further
-    checking. */
+    /* Main verify.  For rcpt-verify use SIZE if we know it and we're not cacheing;
+    for sndr-verify never use it. */
 
     if (done)
       {
+      if (!(options & vopt_is_recipient  &&  options & vopt_callout_no_cache))
+	sx.avoid_option = OPTION_SIZE;
+
       done = FALSE;
       switch(smtp_write_mail_and_rcpt_cmds(&sx, &yield))
 	{
@@ -858,12 +865,12 @@ tls_retry_connection:
 		    case PENDING_OK:  done = TRUE;
 				      new_address_record.result = ccache_accept;
 				      break;
-		    case FAIL:	      done = TRUE;
+		    case FAIL:	    done = TRUE;
 				      yield = FAIL;
 				      *failure_ptr = US"recipient";
 				      new_address_record.result = ccache_reject;
 				      break;
-		    default:	      break;
+		    default:	    break;
 		    }
 		  break;
 
@@ -916,6 +923,7 @@ tls_retry_connection:
 	sx.ok = FALSE;
 	sx.send_rset = TRUE;
 	sx.completed_addr = FALSE;
+	sx.avoid_option = OPTION_SIZE;
 
 	if(  smtp_write_mail_and_rcpt_cmds(&sx, &yield) == 0
 	  && addr->transport_return == PENDING_OK
diff --git a/test/confs/0227 b/test/confs/0227
index ed988ac85..fea66e16f 100644
--- a/test/confs/0227
+++ b/test/confs/0227
@@ -24,6 +24,8 @@ check_recipient:
          !verify   = sender/callout=no_cache
   deny    hosts    = V4NET.0.0.3
          !verify   = recipient/callout=no_cache
+  deny    hosts    = V4NET.0.0.7
+         !verify   = recipient/callout=no_cache,use_sender,random
   deny    hosts    = V4NET.0.0.5
          !verify   = sender/callout=no_cache/check_postmaster
   deny    hosts    = V4NET.0.0.6
diff --git a/test/log/0227 b/test/log/0227
index f1e64701c..d91075fb6 100644
--- a/test/log/0227
+++ b/test/log/0227
@@ -14,6 +14,9 @@
 1999-03-02 09:44:33 H=[V4NET.0.0.5] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
 1999-03-02 09:44:33 H=[V4NET.0.0.5] U=root sender verify fail for <ok@localhost1>: 127.0.0.1 [127.0.0.1] : SMTP error from remote mail server after RCPT TO:<postmaster@localhost1>: 550 Don't like postmaster
 1999-03-02 09:44:33 H=[V4NET.0.0.5] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: Sender verify failed
+1999-03-02 09:44:33 H=(me) [V4NET.0.0.3] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
+1999-03-02 09:44:33 H=(me) [V4NET.0.0.3] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
+1999-03-02 09:44:33 H=(me) [V4NET.0.0.7] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
 1999-03-02 09:44:33 H=[V4NET.0.0.3] U=root F=<uncheckable@localhost1> rejected RCPT <z@remote.lmtp>: 127.0.0.1 [127.0.0.1] : SMTP error from remote mail server after RCPT TO:<z@remote.lmtp>: 550 Recipient not liked
 1999-03-02 09:44:33 H=[V4NET.0.0.1] U=root sender verify defer for <bad@localhost1>: Could not complete sender verify callout: 127.0.0.1 [127.0.0.1] : Remote host closed connection in response to initial connection
 1999-03-02 09:44:33 H=[V4NET.0.0.1] U=root F=<bad@localhost1> temporarily rejected RCPT <z@test.ex>: Could not complete sender verify callout
diff --git a/test/rejectlog/0227 b/test/rejectlog/0227
index 8f5c0ad15..e44ddafbc 100644
--- a/test/rejectlog/0227
+++ b/test/rejectlog/0227
@@ -30,6 +30,9 @@ F From: abcd@x.y.z
 1999-03-02 09:44:33 H=[V4NET.0.0.5] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
 1999-03-02 09:44:33 H=[V4NET.0.0.5] U=root sender verify fail for <ok@localhost1>: 127.0.0.1 [127.0.0.1] : SMTP error from remote mail server after RCPT TO:<postmaster@localhost1>: 550 Don't like postmaster
 1999-03-02 09:44:33 H=[V4NET.0.0.5] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: Sender verify failed
+1999-03-02 09:44:33 H=(me) [V4NET.0.0.3] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
+1999-03-02 09:44:33 H=(me) [V4NET.0.0.3] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
+1999-03-02 09:44:33 H=(me) [V4NET.0.0.7] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
 1999-03-02 09:44:33 H=[V4NET.0.0.3] U=root F=<uncheckable@localhost1> rejected RCPT <z@remote.lmtp>: 127.0.0.1 [127.0.0.1] : SMTP error from remote mail server after RCPT TO:<z@remote.lmtp>: 550 Recipient not liked
 1999-03-02 09:44:33 H=[V4NET.0.0.1] U=root sender verify defer for <bad@localhost1>: Could not complete sender verify callout: 127.0.0.1 [127.0.0.1] : Remote host closed connection in response to initial connection
 1999-03-02 09:44:33 H=[V4NET.0.0.1] U=root F=<bad@localhost1> temporarily rejected RCPT <z@test.ex>: Could not complete sender verify callout
diff --git a/test/scripts/0000-Basic/0227 b/test/scripts/0000-Basic/0227
index a67dab2eb..e53c1da7f 100644
--- a/test/scripts/0000-Basic/0227
+++ b/test/scripts/0000-Basic/0227
@@ -12,11 +12,13 @@ RCPT TO
 QUIT
 250 OK
 ****
+# sender
 sudo exim -v -bs -oMa V4NET.0.0.1
 MAIL FROM:<ok@localhost>
 RCPT TO:<z@test.ex>
 QUIT
 ****
+# sender, no callout
 sudo exim -v -bs -oMa V4NET.0.0.2
 MAIL FROM:<unchecked@localhost>
 RCPT TO:<z@test.ex>
@@ -33,6 +35,7 @@ RCPT TO
 QUIT
 250 OK
 ****
+# sender, refused
 sudo exim -v -bs -oMa V4NET.0.0.1
 MAIL FROM:<bad@localhost>
 RCPT TO:<z@test.ex>
@@ -49,6 +52,7 @@ RCPT TO
 QUIT
 250 OK
 ****
+# sender, tmperr
 sudo exim -v -bs -oMa V4NET.0.0.1
 MAIL FROM:<uncheckable@localhost1>
 RCPT TO:<z@test.ex>
@@ -63,6 +67,7 @@ MAIL FROM
 QUIT
 250 OK
 ****
+# sender, err on mailfrom
 sudo exim -v -bs -oMa V4NET.0.0.1
 MAIL FROM:<uncheckable2@localhost1>
 RCPT TO:<z@test.ex>
@@ -78,6 +83,7 @@ MAIL FROM
 QUIT
 250 OK
 ****
+# sender, err on mailfrom
 sudo exim -v -bs -oMa V4NET.0.0.1
 MAIL FROM:<uncheckable@localhost1>
 RCPT TO:<z@test.ex>
@@ -94,6 +100,7 @@ RCPT TO
 QUIT
 250 OK
 ****
+# recipient, refused
 sudo exim -v -bs -oMa V4NET.0.0.3
 MAIL FROM:<uncheckable@localhost1>
 RCPT TO:<z@remote.domain>
@@ -111,11 +118,13 @@ RCPT TO
 QUIT
 250 OK
 ****
+# recipient, refused
 sudo exim -v -bs -oMa V4NET.0.0.3
 MAIL FROM:<uncheckable@localhost1>
 RCPT TO:<z@remote.domain>
 QUIT
 ****
+# recipient, no conneect
 sudo exim -v -bs -oMa V4NET.0.0.3
 MAIL FROM:<uncheckable@localhost1>
 RCPT TO:<z@remote.domain>
@@ -207,16 +216,17 @@ QUIT
 server PORT_S
 220 Server ready
 EHLO
-250- wotcher
+250- wotcher sverifier
 250-SIZE
 250 OK
-MAIL FROM
+MAIL FROM:<>
 250 OK
 RCPT TO
 250 OK
 QUIT
 250 OK
 ****
+# sender, size known, tgt supports sixe
 sudo exim -v -bs -oMa V4NET.0.0.6
 EHLO me
 MAIL FROM:<ok@localhost1> SIZE=420000
@@ -226,6 +236,76 @@ QUIT
 #
 server PORT_S
 220 Server ready
+EHLO
+250- wotcher rverifier
+250-SIZE
+250 OK
+MAIL FROM:<> SIZE=
+250 OK
+RCPT TO
+250 OK
+QUIT
+250 OK
+****
+# receipient, size known, tgt supports size
+sudo exim -v -bs -oMa V4NET.0.0.3
+EHLO me
+MAIL FROM:<ok@localhost1> SIZE=420000
+RCPT TO:<z@remote.domain>
+QUIT
+****
+#
+server PORT_S
+220 Server ready
+EHLO
+250- wotcher rverifier
+250-SIZE
+250 OK
+MAIL FROM:<>
+250 OK
+RCPT TO
+250 OK
+QUIT
+250 OK
+****
+# receipient, size unknown, tgt supports size
+sudo exim -v -bs -oMa V4NET.0.0.3
+EHLO me
+MAIL FROM:<ok@localhost1>
+RCPT TO:<z@remote.domain>
+QUIT
+****
+#
+server PORT_S
+220 Server ready
+EHLO
+250- wotcher rverifier
+250-SIZE
+250 OK
+MAIL FROM:<ok@localhost1>
+250 OK
+RCPT TO:<myhost.test.ex-
+550 RANDOM NOT OK
+RSET
+250 OK
+MAIL FROM:<ok@localhost1> SIZE=
+250 OK
+RCPT TO:<z@remote.domain>
+250 OK
+QUIT
+250 OK
+****
+# receipient, size known, tgt supports size, use_sender, w/random
+# stdout should see SIZE on the main but not on the random receipient's MAIL FROM
+sudo exim -v -bs -oMa V4NET.0.0.7
+EHLO me
+MAIL FROM:<ok@localhost1> SIZE=420000
+RCPT TO:<z@remote.domain>
+QUIT
+****
+#
+server PORT_S
+220 Server ready
 LHLO
 250 OK
 MAIL FROM
diff --git a/test/stderr/0227 b/test/stderr/0227
index 6a8ee1f7e..e3282cc6f 100644
--- a/test/stderr/0227
+++ b/test/stderr/0227
@@ -222,10 +222,10 @@ LOG: smtp_connection MAIN
 Connecting to 127.0.0.1 [127.0.0.1]:1224 ... connected
   SMTP<< 220 Server ready
   SMTP>> EHLO myhost.test.ex
-  SMTP<< 250- wotcher
+  SMTP<< 250- wotcher sverifier
          250-SIZE
          250 OK
-  SMTP>> MAIL FROM:<> SIZE=ssss
+  SMTP>> MAIL FROM:<>
   SMTP<< 250 OK
   SMTP>> RCPT TO:<ok@localhost1>
   SMTP<< 250 OK
@@ -238,6 +238,69 @@ LOG: smtp_connection MAIN
   SMTP connection from root
 Connecting to 127.0.0.1 [127.0.0.1]:1224 ... connected
   SMTP<< 220 Server ready
+  SMTP>> EHLO myhost.test.ex
+  SMTP<< 250- wotcher rverifier
+         250-SIZE
+         250 OK
+  SMTP>> MAIL FROM:<> SIZE=ssss
+  SMTP<< 250 OK
+  SMTP>> RCPT TO:<z@remote.domain>
+  SMTP<< 250 OK
+  SMTP>> QUIT
+  SMTP<< 250 OK
+  SMTP(close)>>
+LOG: MAIN REJECT
+  H=(me) [V4NET.0.0.3] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
+LOG: smtp_connection MAIN
+  SMTP connection from root closed by QUIT
+LOG: smtp_connection MAIN
+  SMTP connection from root
+Connecting to 127.0.0.1 [127.0.0.1]:1224 ... connected
+  SMTP<< 220 Server ready
+  SMTP>> EHLO myhost.test.ex
+  SMTP<< 250- wotcher rverifier
+         250-SIZE
+         250 OK
+  SMTP>> MAIL FROM:<>
+  SMTP<< 250 OK
+  SMTP>> RCPT TO:<z@remote.domain>
+  SMTP<< 250 OK
+  SMTP>> QUIT
+  SMTP<< 250 OK
+  SMTP(close)>>
+LOG: MAIN REJECT
+  H=(me) [V4NET.0.0.3] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
+LOG: smtp_connection MAIN
+  SMTP connection from root closed by QUIT
+LOG: smtp_connection MAIN
+  SMTP connection from root
+Connecting to 127.0.0.1 [127.0.0.1]:1224 ... connected
+  SMTP<< 220 Server ready
+  SMTP>> EHLO myhost.test.ex
+  SMTP<< 250- wotcher rverifier
+         250-SIZE
+         250 OK
+  SMTP>> MAIL FROM:<ok@localhost1>
+  SMTP<< 250 OK
+  SMTP>> RCPT TO:<myhost.test.ex-dddddddd-testing@remote.domain>
+  SMTP<< 550 RANDOM NOT OK
+  SMTP>> RSET
+  SMTP<< 250 OK
+  SMTP>> MAIL FROM:<ok@localhost1> SIZE=ssss
+  SMTP<< 250 OK
+  SMTP>> RCPT TO:<z@remote.domain>
+  SMTP<< 250 OK
+  SMTP>> QUIT
+  SMTP<< 250 OK
+  SMTP(close)>>
+LOG: MAIN REJECT
+  H=(me) [V4NET.0.0.7] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: relay not permitted
+LOG: smtp_connection MAIN
+  SMTP connection from root closed by QUIT
+LOG: smtp_connection MAIN
+  SMTP connection from root
+Connecting to 127.0.0.1 [127.0.0.1]:1224 ... connected
+  SMTP<< 220 Server ready
   SMTP>> LHLO myhost.test.ex
   SMTP<< 250 OK
   SMTP>> MAIL FROM:<>
diff --git a/test/stderr/2035 b/test/stderr/2035
index e37495092..dedf4ad48 100644
--- a/test/stderr/2035
+++ b/test/stderr/2035
@@ -26,7 +26,7 @@ cmd buf flush ddd bytes
          250 HELP
 using PIPELINING
 not using DSN
-  SMTP>> MAIL FROM:<usera@ok.example> SIZE=ssss
+  SMTP>> MAIL FROM:<usera@ok.example>
   SMTP>> RCPT TO:<userb@test.ex>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
diff --git a/test/stderr/2135 b/test/stderr/2135
index 5a4de14ec..ac524d2af 100644
--- a/test/stderr/2135
+++ b/test/stderr/2135
@@ -26,7 +26,7 @@ cmd buf flush ddd bytes
          250 HELP
 using PIPELINING
 not using DSN
-  SMTP>> MAIL FROM:<usera@ok.example> SIZE=ssss
+  SMTP>> MAIL FROM:<usera@ok.example>
   SMTP>> RCPT TO:<userb@test.ex>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
diff --git a/test/stderr/5410 b/test/stderr/5410
index 6a37deb6e..b4db690ab 100644
--- a/test/stderr/5410
+++ b/test/stderr/5410
@@ -119,7 +119,7 @@ cmd buf flush ddd bytes
 using PIPELINING
 not using DSN
 127.0.0.1 in hosts_require_auth? no (option unset)
-  SMTP>> MAIL FROM:<CALLER@myhost.test.ex> SIZE=ssss
+  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
   SMTP>> RCPT TO:<userx@domain.com>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
@@ -345,7 +345,7 @@ cmd buf flush ddd bytes
 using PIPELINING
 not using DSN
 127.0.0.1 in hosts_require_auth? no (option unset)
-  SMTP>> MAIL FROM:<CALLER@myhost.test.ex> SIZE=ssss
+  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
   SMTP>> RCPT TO:<usery@domain.com>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
@@ -571,7 +571,7 @@ cmd buf flush ddd bytes
 using PIPELINING
 not using DSN
 127.0.0.1 in hosts_require_auth? no (option unset)
-  SMTP>> MAIL FROM:<CALLER@myhost.test.ex> SIZE=ssss
+  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
   SMTP>> RCPT TO:<usery@domain.com>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
diff --git a/test/stderr/5420 b/test/stderr/5420
index eaa40bce8..b34440046 100644
--- a/test/stderr/5420
+++ b/test/stderr/5420
@@ -118,7 +118,7 @@ cmd buf flush ddd bytes
 using PIPELINING
 not using DSN
 127.0.0.1 in hosts_require_auth? no (option unset)
-  SMTP>> MAIL FROM:<CALLER@myhost.test.ex> SIZE=ssss
+  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
   SMTP>> RCPT TO:<userx@domain.com>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
@@ -344,7 +344,7 @@ cmd buf flush ddd bytes
 using PIPELINING
 not using DSN
 127.0.0.1 in hosts_require_auth? no (option unset)
-  SMTP>> MAIL FROM:<CALLER@myhost.test.ex> SIZE=ssss
+  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
   SMTP>> RCPT TO:<usery@domain.com>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
@@ -570,7 +570,7 @@ cmd buf flush ddd bytes
 using PIPELINING
 not using DSN
 127.0.0.1 in hosts_require_auth? no (option unset)
-  SMTP>> MAIL FROM:<CALLER@myhost.test.ex> SIZE=ssss
+  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
   SMTP>> RCPT TO:<usery@domain.com>
 cmd buf flush ddd bytes
   SMTP<< 250 OK
diff --git a/test/stderr/5840 b/test/stderr/5840
index 5ccf7cda0..bc8aeca30 100644
--- a/test/stderr/5840
+++ b/test/stderr/5840
@@ -50,9 +50,9 @@
 >>>          250 HELP
 >>> ip4.ip4.ip4.ip4 in hosts_avoid_pipelining? no (option unset)
 >>> ip4.ip4.ip4.ip4 in hosts_require_auth? no (option unset)
->>>   SMTP>> MAIL FROM:<> SIZE=ssss
+>>>   SMTP>> MAIL FROM:<>
 >>>   SMTP>> RCPT TO:<rcptuser@dane256ee.test.ex>
->>> cmd buf flush 62 bytes
+>>> cmd buf flush 52 bytes
 >>>   SMTP<< 250 OK
 >>>   SMTP<< 250 Accepted
 >>>   SMTP>> QUIT
diff --git a/test/stdout/0227 b/test/stdout/0227
index ea8520ef1..9ee7e9f54 100644
--- a/test/stdout/0227
+++ b/test/stdout/0227
@@ -88,6 +88,33 @@
 250 Accepted

 221 myhost.test.ex closing connection

 220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000

+250-myhost.test.ex Hello root at me [V4NET.0.0.3]

+250-SIZE 52428800

+250-8BITMIME

+250-PIPELINING

+250 HELP

+250 OK

+550 relay not permitted

+221 myhost.test.ex closing connection

+220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000

+250-myhost.test.ex Hello root at me [V4NET.0.0.3]

+250-SIZE 52428800

+250-8BITMIME

+250-PIPELINING

+250 HELP

+250 OK

+550 relay not permitted

+221 myhost.test.ex closing connection

+220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000

+250-myhost.test.ex Hello root at me [V4NET.0.0.7]

+250-SIZE 52428800

+250-8BITMIME

+250-PIPELINING

+250 HELP

+250 OK

+550 relay not permitted

+221 myhost.test.ex closing connection

+220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000

 250 OK

 550-Callout verification failed:

 550 550 Recipient not liked

@@ -248,10 +275,10 @@ Listening on port 1224 ...
 Connection request from [127.0.0.1]
 220 Server ready
 EHLO myhost.test.ex
-250- wotcher
+250- wotcher sverifier
 250-SIZE
 250 OK
-MAIL FROM:<> SIZE=ssss
+MAIL FROM:<>
 250 OK
 RCPT TO:<ok@localhost1>
 250 OK
@@ -261,6 +288,54 @@ End of script
 Listening on port 1224 ... 
 Connection request from [127.0.0.1]
 220 Server ready
+EHLO myhost.test.ex
+250- wotcher rverifier
+250-SIZE
+250 OK
+MAIL FROM:<> SIZE=ssss
+250 OK
+RCPT TO:<z@remote.domain>
+250 OK
+QUIT
+250 OK
+End of script
+Listening on port 1224 ... 
+Connection request from [127.0.0.1]
+220 Server ready
+EHLO myhost.test.ex
+250- wotcher rverifier
+250-SIZE
+250 OK
+MAIL FROM:<>
+250 OK
+RCPT TO:<z@remote.domain>
+250 OK
+QUIT
+250 OK
+End of script
+Listening on port 1224 ... 
+Connection request from [127.0.0.1]
+220 Server ready
+EHLO myhost.test.ex
+250- wotcher rverifier
+250-SIZE
+250 OK
+MAIL FROM:<ok@localhost1>
+250 OK
+RCPT TO:<myhost.test.ex-dddddddd-testing@remote.domain>
+550 RANDOM NOT OK
+RSET
+250 OK
+MAIL FROM:<ok@localhost1> SIZE=ssss
+250 OK
+RCPT TO:<z@remote.domain>
+250 OK
+QUIT
+250 OK
+End of script
+Listening on port 1224 ... 
+Connection request from [127.0.0.1]
+220 Server ready
 LHLO myhost.test.ex
 250 OK
 MAIL FROM:<>