[oscarcp]

Oh boy. I just set up my company a few months back, unfortunately I never had to go into email too much, so I didn't set up DKIM/SPF/DMARC. Then I started receiving emails from my own domain, I panicked because spoooofingg (read with spooky voice) and set up all three. I was bashed for an entire week with reports from all major email services with DMARC reports.

Fortunately I still only have a couple clients so no one was the wiser.

UPDATE: It ended up in a simple scare, nothing was affected and I'm not in any list that I know of, in case you're wondering

[nix23]

Yeah, it's not a small field...like anything legacy ;)

Like the small 1024-bit DKIM because older system (hello exchange) don't accept the 4096 standard.

BTW: That's a good delivery-basetest for your mails you should get a 10/10

https://www.mail-tester.com/

[Avamander]

MECSA is nice as well https://mecsa.jrc.ec.europa.eu/en/