Although mail is flowing from the exchange server to the outside world. I believe there is an issue on my end preventing it from being delivered to some servers. Specifically google and hotmail, but will go to my private domain emails no problems.
When i go to mxtoolbox it says my rDNS doesn't mach my smtp banner. I verified with ptr my ip resolves to the public domain of my mail server. I put a text srv record on my DNS. I changed the FQDN of the banner displayed on the smtp receive connector. Any suggestions?
I think my emails are being flagged as not authenticated or something else is flagging them at these big mail server's spam filtration devices.