SMTP instance '{3}' on server {2} allows anonymous access. For additional security, this can be disabled on back-end mailbox servers that do no accept messages directly from the Internet.
SMTP instance '{3}' on Exchange gateway server {2} is configured to route all messages via smart host '{1}'. This option ...
SMTP instance '{3}' on Exchange gateway server {2} is not using the default port of 25 for outbound SMTP connections. Current ...
SMTP instance '{3}' on server {1} (fully-qualified domain name: {5}) is a remote bridgehead to which server {2} is possibly ...
SMTP instance '{3}' on server {1} (fully-qualified domain name: {5}) is a remote SMTP instance to which server {2} is possibly ...
SMTP instance '{3}' on server {2} allows anonymous access. For additional security, this can be disabled on back-end mailbox ...
SMTP instance '{3}' on server {2} does not support the X-LINK2STATE verb. This will prevent routing updates from being received. ...
SMTP instance '{3}' on server {2} failed the mail acceptance test over port {9} when trying to open the remote socket: {1}. ...
SMTP instance '{3}' on server {2} failed the mail acceptance test. Check that the SMTP server is functioning correctly. Verb ...
SMTP instance '{3}' on server {2} failed the open relay test. Restrictions are in place, but the workstation or user running ...