2 Weeks ago I moved our exchange system to a new server. At this point in time we are up and running fine with the exception of outgoing mail to AOL and Comcast.net (as far as I know these are the only two) we receive rejection error.
"There was a SMTP communication problem with the recipient's email server. (exchange.hansellmitzel.com #5.50smtp;521-EHLO/HELO from sender 184.108.40.206 does not amp to exchange.hansellmitzel.com in DNS" This error comes from comcast.net
"Could not deliver the message in te time limit specified. Please retry or contact your administrator. (EXCHANGE.hansellmitzel.com #4.4.7) this is the error from AOL.com
If managing Active Directory using Windows Powershell® is making you feel like you stepped back in time, you are not alone. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why.