Forum Discussion

DrJoe's avatar
DrJoe
New Contributor
5 years ago

Sending Email Errors

Using Thunderbird email with no problems for years. For the past three days every email sent gets this pop-up: An error occurred while sending mail: The mail server sent an incorrect greeting:  cxr...
BrianM's avatar
BrianM
Moderator
5 years ago
From that error message, that means that the IP address that you are attempting to send from (85.203.32.5) does not support reverse DNS which is a requirement for our mail servers. This helps prevent against spammers, hackers, etc. from sending mail using our servers. This is not something that Cox can fix as it comes from the sending IP. That 85.203.32.5 IP address is not a Cox IP.

Brian
Cox Support Forum Moderator