GMS connected to a remote system to send an email message. While the connection was successful, the remote server indicated that it was temporarily unavailable (with a 4xx SMTP response). So GMS is moving on to the back-up server for this domain.
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
and got the response
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.
- What is an MX record?
- How do I contact the owner of a remote server?
- How do alerts work?
- What is SMTP Response Code Theory?
- What is a FQDN?
- What is the SMTP HELO/EHLO clause?
Keywords:failed connection POST EHLO 8355