NethServer Version: 7.9.2009
Module: ?? mail / postfix ??
I´ve got a strange behavior regarding DKIM signatures. On one account the DKIM signature works flawless.
mail-tester.com reports valid signatur:
When sending from another account mail-tester.com says that the DKIM signature is not valid and shows a different signature:
The only difference between these two accounts is that the second one (with the wrong DKIM signature) is modified via postfix / smtp_generic_maps to send as another email adress wich is also available on the server.
Any idea what might cause these different signatures. I´ve tried and confirmed this behavior with Outlook and with SOGo.