Environment
GWAVA (Secure Messaging Gateway) 7
Situation
External email is not being delivered through Secure Messaging Gateway (SMG).
Sender is receiving a failed delivery notification that states: 550 Cannot process address
In the SMG SMTP log, seeing entries like:
Authenticating to server email.mydomain.com
Authentication failed to server email.mydomain.com: 501 Authentication failed
Could not authenticate connection with host email.mydomain.com with user <user@domainname> as required
Retrying non-TLS connection to SMTP host at email.mydomain.com
Authentication failed to server email.mydomain.com: 501 Authentication failed
Could not authenticate connection with host email.mydomain.com with user <user@domainname> as required
Retrying non-TLS connection to SMTP host at email.mydomain.com
Resolution
In the SMG Admin Console | Organizational/Policy Management, Domain Management, SMTP
HOSTS, Target Type, SMTP Server, the Username has accidentally been populated with a user@domainname address.
Remove this address and save changes. Email will now flow through SMG correctly.