Postsrsd Alternatives

postsrsd reviews and mentions

• Return path empty, therefore, dynamic SPF lookups based on client HELO domain?
  1 project | /r/postfix | 31 Jan 2023

  So you're saying that the alias should work just fine? Have you checked this and this? Together with this solution? It seems it is a problem that can happen with SPF enabled. I can also reproduce the issue as I mention in the Stack Exchange post.

  1 project | /r/linuxadmin | 30 Jan 2023

  There are 2 suggestions in that Stack Exchange topic. One is to use BCC maps, that seems odd to me as a fix. Is that a valid approach? The other one is to use https://github.com/roehling/postsrsd, which may seem more valid. But is an extra milter really needed? Isn't this something Postfix can handle itself? I'm fishing for some more detailed advice and to validate the already given suggestions.

• Postfix: How to set envelope-from when forwarding mail?
  2 projects | /r/linuxadmin | 29 Mar 2022

  I use PostSRSd. This implements Sender Rewriting Scheme. The envelope-FROM is rewritten to an address on your own domain — so recipients will look at your SPF record, not the original sender's record. Bounces back to that address are forwarded back to the original sender. The address includes a cryptographically-generated tag to prevent this send-bounces-back channel from being an open relay.

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