I've implemented a DMARC policy for my company's outgoing email. But I'm receiving surprisingly few aggregate reports back. So far only three domains:
gmail.com; yahoo.com; emailsrvr.com
Does anyone who receives lots of reports or otherwise know which (big) servers send DMARC aggregate reports and which important ones do not at this point in time? Unfortunately, I don't know how otherwise to find out which servers do and don't send reports.
Maybe there's a website or directory that lists this, that'd be fantastic of course - I'm sure something like that should exist. But I could't find it after lots of research.
All I could find was this 4 year old post which only says who uses DMARC to filter, but not who sends reports: https://dmarc.org/2016/02/how-can-i-tell-who-is-using-dmarc/