Answer
GMS connected to a remote system to send a standard email message (that is, not a GMS List Server or GMS Communication Server message). While the connection was successful, the remote server indicated that it will never accept mail from GMS (with a 5xx SMTP response). So GMS is returning the email message.
In this case, session Undefined was was processing a message to be delivered to the server Undefined (IP address Undefined). The local folder name is Undefined. GMS sent the command
HELO Undefined
and got the response
Undefined
There is no problem with GMS, so no action is required by you. However, you may wish to investigate the problem with the remote server.
See Also:
- What is SMTP Response Code Theory?
- What is the SMTP HELO/EHLO clause?
- What is a FQDN?
- How do alerts work?
- How do I contact the owner of a remote server?
Keywords:failed connection POST HELO 8351