>>> Op 12-11-2009 om 21:35 is door Wietse Venema <wie...@porcupine.org> geschreven: > Noel Jones: >> On 11/12/2009 12:28 PM, Arjan Melein wrote: >> > Yea I just found that out when I just tried to sed the queue file :-) >> > Any way to limit it to only take out the line on domain X Y and Z ? >> > On a sidenote, its actually the RCPT TO: line and not the normal TO: >> > line ... not sure if that's going to be a problem .. >> > RCPT TO:<d...@email.addy> ORCPT=rfc822;groupwise-sou...@email.addy;1:1 >> > >> > Thanks for the help so far. >> >> That doesn't look like a header. You need to show exact >> evidence of the error you're getting. > > As shown below, Postfix 2.7 can "fix" commands from remote SMTP > clients. Meanwhile, I am adding a similar feature to "fix" replies > from remote SMTP servers. > > In your case the regexp could look like: > > /^RCPT\s+TO:(.*);1:1$/ RCPT TO:$1 > > This an incredibly unsafe tool. > > Wietse > > smtpd_command_filter (default: empty) > A mechanism to substitute incoming SMTP commands. This is a > last- > resort tool to work around problems with clients that send invalid > com- > mand syntax that would otherwise be rejected by Postfix. > > Specify the name of a "type:table" lookup table. The search string > is > the SMTP command as received from the SMTP client, except that > initial > whitespace and the trailing <CR><LF> are removed. The result value is > executed by the Postfix SMTP server. > > Examples: > > /etc/postfix/main.cf: > smtpd_command_filter = pcre:/etc/postfix/command_filter > > /etc/postfix/command_filter: > # Work around clients that send malformed HELO commands. > /^HELO\s*$/ HELO domain.invalid > > # Work around clients that send empty lines. > /^\s*$/ NOOP > > # Work around clients that send RCPT TO:<'u...@domain'>. > # WARNING: do not lose the parameters that follow the address. > /^RCPT\s+TO:\s*<'([^[:space:]]+)'>(.*)/ RCPT TO:<$1>$2 > > This feature is available in Postfix 2.7.
It might be unsafe, but it seems to do its job properly from what I can see in the tcpdumps.. I set up an extra relay between our enterprise system and our gateway and just re-routed outgoing e-mails for certain domains from GroupWise over that extra relay, that changes the header and hands it off to our normal gateway. This way e-mail which was working normally does not run over anything marked as incredibly unsafe :-) Thanks for the help both of you. - Arjan
