• Laura Steynes [2024-01-04 23:51]:
Happy New Year!
Now to Aki, Timo, Corr, why, when setting up mail forwarding, is sieve not automatically configuring rules for SRS, it has this ability for long time, yet dovecots sieve based forwarding just creates a plain old redirect "forward" resulting in,in 2024, 99% of forwarded emails getting rejected for failing SPF because it's not enabling the require or the rules needed for successful sender rewriting.
External forwarding in 2024 is rather fragile anyway, isn't it?
Is this an oversight? and I suppose the bigger question is, when is it planned to be corrected to using SRS method?
I'd consider this a task for the MTA doing the deliveries of the messages submitted by Dovecot to ensure that all external messages have an envelope sender which would make SPF happy (even though I see that Cyrus' Sieve gained SRS support in 2010). SRS requires coordination with the MTA listed as MX for the domain used in the SRS envelope anyway, so one might as well just do all rewriting on the MTA level.