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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<ok@localhost>
  SMTP<< 250 OK
  SMTP>> QUIT
LOG: smtp_connection MAIN
  SMTP connection from root closed by QUIT
LOG: smtp_connection MAIN
  SMTP connection from root
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<bad@localhost>
  SMTP<< 550 Unknown user
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root sender verify fail for <bad@localhost>: response to "RCPT TO:<bad@localhost>" from 127.0.0.1 [127.0.0.1] was: 550 Unknown user
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root F=<bad@localhost> rejected RCPT <z@test.ex>: Sender verify failed
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<uncheckable@localhost1>
  SMTP<< 450 Temporary error
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root sender verify defer for <uncheckable@localhost1>: response to "RCPT TO:<uncheckable@localhost1>" from 127.0.0.1 [127.0.0.1] was: 450 Temporary error
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root F=<uncheckable@localhost1> temporarily rejected RCPT <z@test.ex>: Could not complete sender verify callout
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 550 Error for <>
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root sender verify fail for <uncheckable2@localhost1>: response to "MAIL FROM:<>" from 127.0.0.1 [127.0.0.1] was: 550 Error for <>
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root F=<uncheckable2@localhost1> rejected RCPT <z@test.ex>: Sender verify failed
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 550-Multiline error for <>
         550 Here's the second line
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root sender verify fail for <uncheckable@localhost1>: response to "MAIL FROM:<>" from 127.0.0.1 [127.0.0.1] was: 550-Multiline error for <>\n550 Here's the second line
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root F=<uncheckable@localhost1> rejected RCPT <z@test.ex>: Sender verify failed
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<z@remote.domain>
  SMTP<< 550 Recipient not liked
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.3] U=root F=<uncheckable@localhost1> rejected RCPT <z@remote.domain>: response to "RCPT TO:<z@remote.domain>" from 127.0.0.1 [127.0.0.1] was: 550 Recipient not liked
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<z@remote.domain>
  SMTP<< 550-Recipient not liked on two lines
         550 Here's the second
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.3] U=root F=<uncheckable@localhost1> rejected RCPT <z@remote.domain>: response to "RCPT TO:<z@remote.domain>" from 127.0.0.1 [127.0.0.1] was: 550-Recipient not liked on two lines\n550 Here's the second
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 ... failed: Connection refused
Connecting to ip4.ip4.ip4.ip4 [ip4.ip4.ip4.ip4]:1224 ... failed: Connection refused
LOG: MAIN REJECT
  H=[V4NET.0.0.3] U=root F=<uncheckable@localhost1> temporarily rejected RCPT <z@remote.domain>: Could not complete recipient verify callout
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<abcd@x.y.z>
  SMTP<< 550 Not liked
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.4] U=root F=<uncheckable@localhost1> rejected after DATA: there is no valid sender in any header line
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<abcd@x.y.z>
  SMTP<< 550 Not liked
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.4] U=root F=<uncheckable@localhost1> rejected after DATA: there is no valid sender in any header line
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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<ok@localhost1>
  SMTP<< 250 OK
Cutthrough cancelled by presence of postmaster verify
  SMTP>> RSET
  SMTP<< 250 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<postmaster@localhost1>
  SMTP<< 250 OK
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.5] 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 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<ok@localhost1>
  SMTP<< 250 OK
Cutthrough cancelled by presence of postmaster verify
  SMTP>> RSET
  SMTP<< 250 OK
  SMTP>> MAIL FROM:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<postmaster@localhost1>
  SMTP<< 550 Don't like postmaster
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.5] U=root sender verify fail for <ok@localhost1>: response to "RCPT TO:<postmaster@localhost1>" from 127.0.0.1 [127.0.0.1] was: 550 Don't like postmaster
LOG: MAIN REJECT
  H=[V4NET.0.0.5] U=root F=<ok@localhost1> rejected RCPT <z@remote.domain>: Sender verify failed
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:<>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<z@remote.lmtp>
  SMTP<< 550 Recipient not liked
  SMTP>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.3] U=root F=<uncheckable@localhost1> rejected RCPT <z@remote.lmtp>: response to "RCPT TO:<z@remote.lmtp>" from 127.0.0.1 [127.0.0.1] was: 550 Recipient not liked
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>> QUIT
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root sender verify defer for <bad@localhost1>: response to "initial connection" from 127.0.0.1 [127.0.0.1] was: connection dropped
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root F=<bad@localhost1> temporarily rejected RCPT <z@test.ex>: Could not complete sender verify callout
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 ... failed: Connection refused
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root sender verify defer for <bad@localhost1>: could not connect to 127.0.0.1 [127.0.0.1]: Connection refused
LOG: MAIN REJECT
  H=[V4NET.0.0.1] U=root F=<bad@localhost1> temporarily rejected RCPT <z@test.ex>: Could not complete sender verify callout
LOG: smtp_connection MAIN
  SMTP connection from root closed by QUIT