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This is documentation about a configuration directive, which can be placed within Movable Type’s core configuration file, mt-config.cgi, to customize the behavior of the system.

The “From” email address for outgoing email sent by Movable Type when no other email address is in context.

This should be the email address of an administrator for this Movable Type installation, or set to a “no-reply” email address.

Warning: If unset, email without any determined “From” address to not be sent. Movable Type will default to using the author of the relevant post. Though this is often also the addressee of the email, which can cause problems with spam filters.

The value of this setting can be set as the value of this config directive or in Movable Type as the value of the “System Email” on System Overview > Settings > General screen.

Password Recovery (introduced in MT4.24) uses the EmailAddressMain configuration directive to initialize an email’s “From” address.

A value is required for sending outgoing email for:

  • password recovery
  • commenter registration
  • comment and trackback notification
  • email notification of new entries

…and a few other minor events.


Valid email address. There is no default value.


Set default email address to