Sympa should not remove existing DKIM-Signature headers from outgoing messages.
Current Behavior
Sympa removes invalid DKIM-Signature headers in Spindle/ProcessOutgoing.pm.
Possible Solution
Do not remove invalid DKIM-Signature headers by default. However, since such a removal might be needed in some circumstances, it can be provided as a configuration option.
Context
I'm a mail system administrator at a university. I need to know which domains are intended to authenticate the message to better understand the DKIM/ARC/DMARC situations of these domains.
Sympa removes invalid DKIM-Signature headers from outgoing messages when ARC or DKIM is enabled. Could you please make this behavior optional?
According to section 4.2 of RFC6376,
A relevant bug report of mailman2: https://bugs.launchpad.net/mailman/+bug/557493
Expected Behavior
Sympa should not remove existing DKIM-Signature headers from outgoing messages.
Current Behavior
Sympa removes invalid DKIM-Signature headers in Spindle/ProcessOutgoing.pm.
Possible Solution
Do not remove invalid DKIM-Signature headers by default. However, since such a removal might be needed in some circumstances, it can be provided as a configuration option.
Context
I'm a mail system administrator at a university. I need to know which domains are intended to authenticate the message to better understand the DKIM/ARC/DMARC situations of these domains.