Hi, Andy Smith wrote: > [...] I argue that at present it > isn't a good idea to just reject all DKIM failures like OP's mailbox > provider appears to be doing.
Just for the records: The mails in question don't get rejected but rather marked as spam and then get delivered. The currently best theory is that megamailservers.eu adds a header X-Spam-Flag: YES if it perceives DKIM problems, and that the local anti-spam software of the receiver takes this header as reason to alter the subject by the prefix "*****SPAM*****". Whether it is a good idea to map DKIM failure to a spam marking header is another interesting topic. Original post of this thread with an example of all headers of a mail: https://lists.debian.org/msgid-search/3371640.PXJkl210th@protheus2 Have a nice day :) Thomas
