Summary:

All mail inbound into EMF (from either the Internet or your internal network) can be temporarily stopped by making a change in the EMF relay settings.

Details:

By making this change, every EMF inbound SMTP relay service using this database will reject all connections on the SMTP listening port (usually port 25).

Resolution:

In EMF 5.6 and later:

• Open webadmin > Set Up > Relay Settings
• Mark the Reject All Inbound Connections checkbox
• Save settings

Previous to EMF 5.6:

• Open SQL Enterprise Manager
• Open EMFMail (MMSMail)
• Open Tables
• Right-click the RelayConfigValues table, and return all rows
• Add a row in the RelayConfigValues with keyName = 'Reject All Inbound Connections'
• Set the intValue column in this row to 1 (0 is normal, the relays will accept connections)
• Update the lastUpdate column in this row to the current date and time; the approximate current date and time can be entered, as long as it's later than what was in the field
• Close the table view to commit changes
• Restart all relay services