Remove tabs and trailing spaces ...

1 files changed, 108 insertions, 108 deletions

diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt
index 682b60b24..fbc1dfb72 100644
--- a/doc/doc-txt/experimental-spec.txt
+++ b/doc/doc-txt/experimental-spec.txt
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/experimental-spec.txt,v 1.2 2005/03/08 15:33:05 tom Exp $
+$Cambridge: exim/doc/doc-txt/experimental-spec.txt,v 1.3 2005/06/27 18:32:20 tom Exp $
 
 From time to time, experimental features may be added to Exim.
 While a feature  is experimental, there  will be a  build-time
@@ -45,7 +45,7 @@ are limited to SMTP I/O.
 
 Incoming messages are fed to the DK validation process as they
 are  received "on  the wire".  This happens  synchronously to
-Exim's buffering of the message in the spool. 
+Exim's buffering of the message in the spool.
 
 You  must  set  "control  =  dk_verify"  in  one  of  the ACLs
 preceding DATA  (you will  typically use  acl_smtp_rcpt), at a
@@ -67,32 +67,32 @@ expansion variables.
 1.1.) DK ACL conditions
 
   dk_sender_domains = <domain list>
-                      
+
     This   condition   takes  a   domainlist  as argument  and
     succeeds if the domain that DK has  been verifying  for is
     found in the list.
 
 
   dk_senders = <address list>
-  
+
     This  condition  takes  an  addresslist  as argument   and
     succeeds  if  the address  that DK has been  verifying for
     is  found in the list.
 
 
   dk_sender_local_parts = <local part list>
-  
+
     This  condition  takes   a local_part  list   as  argument
     and  succeeds   if  the   domain   that    DK   has   been
     verifying  for is found in the list.
 
 
   dk_status = <colon separated list of keywords>
-  
+
     This condition takes a  list of keywords as  argument, and
     succeeds if one of the listed keywords matches the outcome
     of the DK check. The available keywords are:
-    
+
     good            DK check succeeded, mail is verified.
     bad             DK check failed.
     no signature    Mail is not signed with DK.
@@ -103,23 +103,23 @@ expansion variables.
 
 
   dk_policy = <colon separated list of keywords>
-  
+
     This condition takes a  list of keywords as  argument, and
     succeeds if one of the listed keywords matches the  policy
     announced  by the  target domain.  The available  keywords
     are:
-    
+
     signsall        The target domain signs all outgoing email.
     testing         The target domain is currently testing DK.
 
 
   dk_domain_source = <colon separated list of keywords>
-  
+
     This condition takes a  list of keywords as  argument, and
     succeeds  if  one  of  the  listed  keywords  matches  the
     location where DK found the sender domain it verified for.
     The available keywords are:
-    
+
     from            The domain came from the "From:" header.
     sender          The domain came from the "Sender:" header.
     none            DK was unable to find the responsible domain.
@@ -129,53 +129,53 @@ expansion variables.
 1.2.) DK verification expansion variables
 
   $dk_sender_domain
-  
+
     Contains the domain that DK has verified for.
-    
-  
+
+
   $dk_sender
-  
+
     Contains the address that DK has verified for.
-    
-    
+
+
   $dk_sender_local_part
-  
+
     Contains the local part that DK has verified for.
-  
-  
+
+
   $dk_sender_source
-  
+
     Contains the "source" of the above three variables, one of
-    
+
       "from"    The address came from the "From:" header.
       "sender"  The address came from the "Sender:" header.
-   
+
     When DK was unable to find a valid address, this variable
-    is "0".      
+    is "0".
 
 
   $dk_signsall
-  
+
     Is "1" if the target domain signs all outgoing email,
     "0" otherwise.
-    
-    
+
+
   $dk_testing
-  
+
     Is "1" if the target domain is testing DK, "0" otherwise.
-    
-       
+
+
   $dk_is_signed
-  
+
     Is "1" if the message is signed, "0" otherwise.
-    
-    
+
+
   $dk_status
-  
+
     Contains the outcome of the DK check as a string, commonly
     used to add a "DomainKey-Status:" header to messages. Will
     contain one of:
-    
+
     good            DK check succeeded, mail is verified.
     bad             DK check failed.
     no signature    Mail is not signed with DK.
@@ -186,10 +186,10 @@ expansion variables.
 
 
   $dk_result
-  
+
     Contains a  human-readable result  of the  DK check,  more
     verbose than $dk_status. Useful for logging purposes.
-   
+
 
 
 2) Sign outgoing email with DK
@@ -206,7 +206,7 @@ to sign for.
 
 
   dk_selector = <expanded string> [MANDATORY]
-  
+
     This  sets  the  key  selector  string.  You  can  use the
     $dk_domain  expansion  variable  to  look  up  a  matching
     selector.  The result  is put  in the  expansion  variable
@@ -215,11 +215,11 @@ to sign for.
 
 
   dk_private_key = <expanded string> [MANDATORY]
-  
+
     This  sets the  private key  to use.  You SHOULD  use  the
     $dk_domain   and  $dk_selector   expansion  variables   to
     determine the private key to use. The result can either
-    
+
       o be a valid RSA private key in ASCII armor, including
         line breaks.
       o start with a slash, in which case it is treated as
@@ -227,10 +227,10 @@ to sign for.
       o be "0", "false" or the empty string, in which case
         the message will not be signed. This case will not
         result in an error, even if dk_strict is set.
-        
+
 
   dk_canon = <expanded string> [OPTIONAL]
-    
+
     This  option sets  the canonicalization  method used  when
     signing a  message. The  DK draft  currently supports  two
     methods:  "simple"  and "nofws".  The  option defaults  to
@@ -238,7 +238,7 @@ to sign for.
 
 
   dk_strict = <expanded string> [OPTIONAL]
-  
+
     This  option  defines  how  Exim  behaves  when  signing a
     message that should be signed fails for some reason.  When
     the expansion evaluates to either "1" or "true", Exim will
@@ -248,13 +248,13 @@ to sign for.
 
 
   dk_domain = <expanded string> [NOT RECOMMENDED]
-  
+
     This  option overrides  DKs autodetection  of the  signing
     domain. You should only use  this option if you know  what
     you are doing. The result of the string expansion is  also
     put in $dk_domain.
-    
-    
+
+
 
 
 2. Brighmail AntiSpam (BMI) suppport
@@ -288,7 +288,7 @@ following steps:
      of the config file).
   5) (Optional) Set up per-recipient opt-in information.
 
-These four steps are explained in more details below. 
+These four steps are explained in more details below.
 
 1) Adding support for BMI at compile time
 
@@ -302,14 +302,14 @@ These four steps are explained in more details below.
   EXPERIMENTAL_BRIGHTMAIL=yes
   CFLAGS=-DBRIGHTMAIL -I/path/to/the/dir/with/the/includefile
   EXTRALIBS_EXIM=-L/path/to/the/dir/with/the/library -lbmiclient_single
-  
+
   If  you use  other CFLAGS  or EXTRALIBS_EXIM  settings then
   merge the content of these lines with them.
 
   Note for BMI6.x users: You'll also have to add -lxml2_single
   to the EXTRALIBS_EXIM line. Users of 5.5x do not need to  do
   this.
-  
+
   You    should     also    include     the    location     of
   libbmiclient_single.so in your dynamic linker  configuration
   file   (usually   /etc/ld.so.conf)   and   run    "ldconfig"
@@ -322,9 +322,9 @@ These four steps are explained in more details below.
   To enable BMI  support in the  main exim configuration,  you
   should set the path to the main BMI configuration file  with
   the "bmi_config_file" option, like this:
-  
+
   bmi_config_file = /opt/brightmail/etc/brightmail.cfg
-  
+
   This must go into section 1 of exims configuration file (You
   can  put it  right on  top). If  you omit  this option,  it
   defaults to /opt/brightmail/etc/brightmail.cfg.
@@ -332,7 +332,7 @@ These four steps are explained in more details below.
   Note for BMI6.x users: This  file is in XML format  in V6.xx
   and its  name is  /opt/brightmail/etc/bmiconfig.xml. So  BMI
   6.x users MUST set the bmi_config_file option.
-  
+
 
 3) Set up ACL control statement
 
@@ -345,7 +345,7 @@ These four steps are explained in more details below.
   use the "accept" block(s)  that accept messages from  remote
   servers for your own domain(s). Here is an example that uses
   the "accept" blocks from exims default configuration file:
-  
+
 
   accept  domains       = +local_domains
           endpass
@@ -356,7 +356,7 @@ These four steps are explained in more details below.
           endpass
           verify        = recipient
           control       = bmi_run
-  
+
   If bmi_run  is not  set in  any ACL  during reception of the
   message, it will NOT be passed to the BMI server.
 
@@ -369,106 +369,106 @@ These four steps are explained in more details below.
   during routing, so you  can query the verdicts  by recipient
   at  that stage.  From Exims  view, a  verdict can  have the
   following outcomes:
-  
+
   o deliver the message normally
   o deliver the message to an alternate location
   o do not deliver the message
-  
+
   To query  the verdict  for a  recipient, the  implementation
   offers the following tools:
-  
-  
+
+
   - Boolean router  preconditions. These  can be  used in  any
     router. For a simple  implementation of BMI, these  may be
     all  that  you  need.  The  following  preconditions   are
     available:
-    
+
     o bmi_deliver_default
-    
+
       This  precondition  is  TRUE  if  the  verdict  for  the
       recipient is  to deliver  the message  normally. If  the
       message has not been  processed by the BMI  server, this
       variable defaults to TRUE.
-      
+
     o bmi_deliver_alternate
-    
+
       This  precondition  is  TRUE  if  the  verdict  for  the
       recipient  is to  deliver the  message to  an alternate
       location.  You  can  get the  location  string  from the
       $bmi_alt_location expansion variable if you need it. See
       further below. If the message has not been processed  by
       the BMI server, this variable defaults to FALSE.
-      
+
     o bmi_dont_deliver
-    
+
       This  precondition  is  TRUE  if  the  verdict  for  the
       recipient  is  NOT  to   deliver  the  message  to   the
       recipient. You will typically use this precondition in a
       top-level blackhole router, like this:
-      
+
         # don't deliver messages handled by the BMI server
         bmi_blackhole:
           driver = redirect
           bmi_dont_deliver
           data = :blackhole:
-      
+
       This router should be on top of all others, so  messages
       that should not be delivered do not reach other  routers
       at all. If   the  message  has  not  been  processed  by
       the  BMI server, this variable defaults to FALSE.
-      
-      
+
+
   - A list router  precondition to query  if rules "fired"  on
     the message for the recipient. Its name is "bmi_rule". You
     use  it  by  passing it  a  colon-separated  list of  rule
     numbers. You can use this condition to route messages that
     matched specific rules. Here is an example:
-    
+
       # special router for BMI rule #5, #8 and #11
       bmi_rule_redirect:
         driver = redirect
         bmi_rule = 5:8:11
         data = postmaster@mydomain.com
-      
-  
+
+
   - Expansion variables. Several  expansion variables are  set
     during  routing.  You  can  use  them  in  custom   router
     conditions,  for  example.  The  following  variables  are
     available:
-    
+
     o $bmi_base64_verdict
-    
+
       This variable  will contain  the BASE64  encoded verdict
       for the recipient being routed. You can use it to add  a
       header to messages for tracking purposes, for example:
-      
+
       localuser:
         driver = accept
         check_local_user
         headers_add = X-Brightmail-Verdict: $bmi_base64_verdict
         transport = local_delivery
-      
+
       If there is no verdict available for the recipient being
       routed, this variable contains the empty string.
-    
+
     o $bmi_base64_tracker_verdict
-    
+
       This variable  will contain  a BASE64  encoded subset of
       the  verdict  information  concerning  the  "rules" that
       fired  on the  message. You  can add  this string  to a
       header, commonly named "X-Brightmail-Tracker". Example:
-      
+
       localuser:
         driver = accept
         check_local_user
         headers_add = X-Brightmail-Tracker: $bmi_base64_tracker_verdict
         transport = local_delivery
-        
+
       If there is no verdict available for the recipient being
       routed, this variable contains the empty string.
-      
+
     o $bmi_alt_location
-    
+
       If  the  verdict  is  to  redirect  the  message  to  an
       alternate  location,  this  variable  will  contain  the
       alternate location string returned by the BMI server. In
@@ -477,17 +477,17 @@ These four steps are explained in more details below.
       there is  no verdict  available for  the recipient being
       routed, or if the  message is to be  delivered normally,
       this variable contains the empty string.
-      
+
     o $bmi_deliver
-    
+
       This is an additional integer variable that can be  used
       to query if the message should be delivered at all.  You
       should use router preconditions instead if possible.
-      
+
       $bmi_deliver is '0': the message should NOT be delivered.
       $bmi_deliver is '1': the message should be delivered.
-      
-   
+
+
   IMPORTANT NOTE: Verdict inheritance.
   The  message  is passed  to  the BMI  server  during message
   reception,  using the  target addresses  from the  RCPT TO:
@@ -496,8 +496,8 @@ These four steps are explained in more details below.
   inherit the  verdict from  the original  address. This means
   that verdicts also apply to all "child" addresses  generated
   from top-level addresses that were sent to the BMI server.
-  
-  
+
+
 5) Using per-recipient opt-in information (Optional)
 
   The  BMI server  features multiple  scanning "profiles"  for
@@ -517,32 +517,32 @@ These four steps are explained in more details below.
   flag. Here is an example that will pull opt-in data for each
   recipient      from       a      flat       file      called
   '/etc/exim/bmi_optin_data'.
-  
+
   The file format:
-  
+
     user1@mydomain.com: <OPTIN STRING1>:<OPTIN STRING2>
     user2@thatdomain.com: <OPTIN STRING3>
-    
-    
+
+
   The example:
-  
+
     accept  domains       = +relay_to_domains
             endpass
             verify        = recipient
             bmi_optin     = ${lookup{$local_part@$domain}lsearch{/etc/exim/bmi_optin_data}}
-            control       = bmi_run  
-  
+            control       = bmi_run
+
   Of course,  you can  also use  any other  lookup method that
   exim supports, including LDAP, Postgres, MySQL, Oracle etc.,
   as long as  the result is  a list of  colon-separated opt-in
   strings.
-  
+
   For a list of available opt-in strings, please contact  your
   Brightmail representative.
-  
-  
 
-  
+
+
+
 3. Sender Policy Framework (SPF) support
 --------------------------------------------------------------
 
@@ -551,10 +551,10 @@ document does   not explain  the SPF  fundamentals, you should
 read and understand the implications of deploying SPF on  your
 system before doing so.
 
-SPF support is added via the libspf2 library. Visit 
+SPF support is added via the libspf2 library. Visit
 
   http://www.libspf2.org/
-  
+
 to obtain  a copy,  then compile  and install  it. By default,
 this will  put headers  in /usr/local/include  and the  static
 library in /usr/local/lib.
@@ -601,7 +601,7 @@ which the spf condition should succeed. Valid strings are:
   o err_temp  This indicates a temporary error during all
               processing, including exim's SPF processing.
               You may defer messages when this occurs.
-              
+
 You can prefix each string with an exclamation mark to  invert
 is meaning,  for example  "!fail" will  match all  results but
 "fail".  The  string  list is  evaluated  left-to-right,  in a
@@ -640,29 +640,29 @@ variables.
   This contains a human-readable string describing the outcome
   of the SPF check. You can add it to a custom header or use
   it for logging purposes.
-  
+
   $spf_received
   This contains a complete SPF-Received: header that can be
   added to the message. Please note that according to the SPF
   draft, this header must be added at the top of the header
   list. Please see section 10 on how you can do this.
-  
+
   $spf_result
   This contains the outcome of the SPF check in string form,
   one of pass, fail, softfail, none, neutral, err_perm or
   err_temp.
-  
+
   $spf_smtp_comment
   This contains a string that can be used in a SMTP response
   to the calling party. Useful for "fail".
-  
-  
+
+
 
 4. SRS (Sender Rewriting Scheme) Support
 --------------------------------------------------------------
 
 Exiscan  currently  includes SRS  support  via Miles  Wilton's
-libsrs_alt library. The current version of the supported 
+libsrs_alt library. The current version of the supported
 library is 0.5.
 
 In order to  use SRS, you  must get a  copy of libsrs_alt from