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Philippe23
Tux's lil' helper
Tux's lil' helper


Joined: 20 Dec 2006
Posts: 118
Location: Rome, NY

PostPosted: Thu May 25, 2017 4:23 pm    Post subject: PostSRSd question Reply with quote

I was thinking of install PostSRSd[1] on my system so the few users who forward their mail from our Postfix system can benefit from SRS[2].

One thing that gives me pause is this "Known Issue" of PostSRSd:

Quote:
"Due to the way PostSRSd is integrated with Postfix, sender addresses will always be rewritten even if the mail is not forwarded at all. This is because the canonical maps are read by the cleanup daemon, which processes mails at the very beginning before any routing decision is made."


Does anyone have any experience with PostSRSd + Postfix? Does this literally mean any e-mail sent from my domain will end up "SRSed"? (SRS0+xxxx=yy=yourdomain.org=alice@yourdomain.org) Or does it mean that any e-mail that gets rerouted at all (eg: an alias that catches mail sent to root@yourdomain.org and instead delivers it to admin@yourdomain.org) will get rewritten? And it doesn't mean that the From: header gets modified at all, correct?

[1] https://github.com/roehling/postsrsd
[2] https://en.wikipedia.org/wiki/Sender_Rewriting_Scheme
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