Catchall account not catching email

The catchall account does not collect email which is addressed to non existent mailboxes in a domain. Instead the following error message is seen:

"Unable to deliver to destination domain. The routing information for domain.com points to this machine, but this machine has no knowledge of that domain"

The above error will occur if the 'Relay Host' feature has been enabled within MailSite for this domain. This is enabled in the 'Domain Properties' for the above domain.

If this feature is enabled then MailSite will first look at this domain when delivering email. If the account is not present then it will attempt to deliver the message to the host as entered within the 'Relay Host' feature. In essence the 'Relay Host' feature disables the functionality of the catchall account.

If this feature has been enabled in error, then disable it. This will allow the catchall account to function as expected.