The Sender Rewriting Scheme preserves .forward functionality in an SPF-compliant world. SPF requires the SMTP client IP to match the envelope sender (return-path). When a message is forwarded through an intermediate server, that intermediate server may need to rewrite the return-path to remain SPF compliant. If the message bounces, that intermediate server needs to validate the bounce and forward the bounce to the o…
The Sender Rewriting Scheme preserves .forward functionality in an SPF-compliant world. SPF requires the SMTP client IP to match the envelope sender (return-path). When a message is forwarded through an intermediate server, that intermediate server may need to rewrite the return-path to remain SPF compliant. If the message bounces, that intermediate server needs to validate the bounce and forward the bounce to the original sender. SRS provides a convention for return-path rewriting which allows multiple forwarding servers to compact the return-path. SRS also provides an authentication mechanism to ensure that purported bounces are not arbitrarily forwarded. SRS is documented at http://spf.pobox.com/srs.html and many points about the scheme are discussed at http://www.anarres.org/projects/srs/ For a better understanding of this code and how it functions, please read this document and run the interactive walkthrough in eg/simple.pl in this distribution. To run this from the build directory, type "make teach".
To install p5.28-mail-srs, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install p5.28-mail-srs
To see what files were installed by p5.28-mail-srs, run:
port contents p5.28-mail-srs
To later upgrade p5.28-mail-srs, run:
sudo port selfupdate && sudo port upgrade p5.28-mail-srs
Reporting an issue on MacPorts Trac
The MacPorts Project uses a system called Trac to file tickets to report bugs and enhancement requests.
Though anyone may search Trac for tickets, you must have a GitHub account in order to login to Trac to create tickets.