I recently changed a companies ISP provider and since then their e-mail is getting bounced around. I have checked the DNS settings, I have checked the mx record.
I have contacted the new ISP provider and had a PTR record created for the error below, did not seem to help. Do I need to contact Eathlink?
error "There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. #5.5.0 smtp;550-EarthLink does not recognize your computer"
The error below on this one I am not sure what to do. The company said that they have never had this problem before. Can you give me any suggestions to help resolve all there issues?
error "Could not deliver the message in the time limit specified. error #4.4.7"