On 17 Dec 2019, at 06:14, Roberto Carna <robertocarn...@gmail.com> wrote: > I have a Postfix server and I have SPF and DKIM TXT records in my DNS. > Everything works OK.
Good. You might look into DNSSEC as well if you haven’;t done that. The setup is a bit tricky butane it’s setup it just works. > But now I want to implement DMARC The unanswered question here is why do you want to do this? If you have a good reason, then fine, do it. If you just kind of want to do it because it seems like a thing to do, don’t. (Been there, done that, had the patty melt)