Comment by asimops
3 days ago
I know it is late, but for anyone reading this now, as I am:
Mailbox.org is completely ignoring DMARC since months... And their handling of the issue IMHO is incompetent at best.
See this thread (in German) https://userforum.mailbox.org/topic/10676-mailbox-org-akzept...
That's just inexcusably bad. They claimed to be working on the issue 7 months ago, but that was obviously a straight up lie.