Forum Discussion
Sending to Yahoo e mail accounts from my Outlook e mail
David675 we are having the same issue for a few weeks. Getting an “undeliverable” a few days later. returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
Unable to email to AOL or Yahoo email accounts. For some reason we have another domain with Google and are able to send emails from there. Microsoft please fix this issue or we will port to Google.
I resolved this issue by adding a dmarc record with my dns registrar. it would look something like this below. it took 48 hours to propagate
_dmarc."your domain name.com"
value "v=DMARC1: p=none; rua=mailto:"any email address you control"; pct=25;"
TTL 300 Seconds
Simple routing
no quotes with the domain or email address example below
_dmarc.microsoft.com "v=DMARC1; p=none; rua=mailto:email address removed for privacy reasons; pct=25;"
use an email address you don't care about expect emails daily with dmarc summary reports
