On Fri, Jun 28, 2019 at 10:26:20AM +0200, Matus UHLAR - fantomas wrote: > >My question now is: What is the correct/expected behaviour in such a > >situation? > > You apparently should use SRS when forwarding mail. That will change sender > to your domain so the mail will pass SPF and should not be refused by google.
SRS is enough to avoid trouble with SPF, but not enough to avoid trouble with DMARC. Email forwarding has been irreparably broken by DMARC. -- Viktor.