So I had a user say they couldn't get to OWA, and after looking into things (and rebooting exchange, I might add- don't judge me) I've come to the conclusion that there are external MX record/ DNS issues. I can telnet to port 25/ ping/ etc from internally, but externally I can't.
, I get the following error:
Testing inbound SMTP mail flow for domain email@example.com.
ExRCA failed to test inbound SMTP mail flow.
Attempting to retrieve DNS MX records for domain domain.tld.
ExRCA wasn't able to retrieve MX records from DNS.
Tell me more about this issue and how to resolve it
No MX records were found in DNS for SMTP domain domain.tld.
(Obviously I didn't put in domain.tld)
When I do a MX lookup via mxtoolbox.com, it says no records found. Please let me know if I'm just being silly, or if there's something going on with DNS (which it clearly looks like there is.)
Thanks a million.