Re: Do not include first 'Received' header when received via 465/587?
On Fri, 6 Mar 2009, Noel Jones wrote: Victor Duchovni wrote: Probably want a : in there to make it a valid header: header_checks.pcre: if /^Received:/ /\n\tby (smtp\.example\.com \(Postfix\) with ESTMPS?A id \w+)/ REPLACE X-Submitted: to $1 endif Yes, thanks. I extrapolated from this, and got something that works perfectly - thanks so much! if /^Received:/ /.*by (hostname \(Postfix\) with ESMTPS?A).*/ REPLACE X-Submitted: to $1 endif My servers do additional processing, and add received headers after this, so no issues with spam filters (as mentioned later in this thread.) Appreciate the help!
Do not include first 'Received' header when received via 465/587?
Hi, I have a client that I have set up the submission port and 465 (for submission over raw SSL). They use many different internet connections, and a few of them (Panera Bread in particular) have their IP on blacklists. Because the IP gets included in the first Received header from Postfix, some sites are catching the mail as spam (apparently some sites scan all 'Received' headers for DNSBL's? Sigh.) I've found tricks to remove or edit Received headers for specific IP's via 'header_checks'; however, what I'd like to be able to do is either remove the header altogether or modify the IP to one of the IP's that we own for all authenticated users that submit mail via 465/587. I'm not finding a clean way of doing this; hoping someone has been down this road before so I don't have to reinvent the wheel. ;) Appreciate any advice - thanks much! -Nate
Re: Do not include first 'Received' header when received via 465/587?
On Thu, 5 Mar 2009, Wietse Venema wrote: I've found tricks to remove or edit Received headers for specific IP's via 'header_checks'; however, what I'd like to be able to do is either remove the header altogether or modify the IP to one of the IP's that we own for all authenticated users that submit mail via 465/587. $ man header_checks | less +/IGNORE $ man header_checks | less +/REPLACE Thanks.. I've got that, but I'm not finding a way to only match mail that comes in via Submission, and not via regular SMTP. Is there a way to tell Postfix to only apply the header_checks to certain mail processes? I suppose I could do something like 'no_header_body_checks' on the main SMTP process, but it'd be nice to be able to do some checks there in the future too. -Nate
Set outgoing IP address based on sender e-mail address?
Hey all, Sorry if this is a FAQ, I can't find anything about it online. Is it possible to set the outgoing IP address of a locally-generated message based on the sender's e-mail address? IE, if a message is submitted via 'pickup' with the sender address of 'u...@example1.com', use the IP '192.168.100.10' for the outgoing IP address. If a message is submitted via 'pickup' with the sender address of 'u...@example2.com', use the IP '192.16.100.11' for the outgoing IP address. Basically, in a virtual hosting environment, I'd like to ensure that mail sent via one user cannot affect another user's IP's 'reputation', and I'd also like the outgoing mail server to match the incoming MX record for the domain. Thanks! -Nate
