Am 25.10.20 um 16:48 schrieb Marc Roos:
Say someone has setup spf for his domain and sends an email to a user that has in roundcube enabled the sieve forward. If the message is forwarded without altering the message headers, this could result in a message being blocked or not relayed, because sending hosts ip, is not in the spf of the from: domain.
Possible solutions are:
- add option if enabled, it replaces the From: with that of the email address of the sieve user. (Maybe move the original sender to the Reply-To header? Maybe exception for 'internal' forward?)
- Upon processing the message, check the spf records, if they are enforced, do the above, otherwise do nothing.
long time ago i did tests about this
https://blog.sys4.de/email-forward-mit-sieve-ohne-spf-dmarc-und-dkim-konflik...
perhaps it helps , but its not up2date
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