Dirsync hack MTA option

Dirsync mode control
In dirsync mode, the  MTA option enables the "hack" where when a user is not found in the alias database, fall back to attempting to do an LDAP lookup on the user and plugging the user address, if found in LDAP, into the  alias database. The default is 0 (false), meaning that this is not attempted. Setting this option to 1 (true) causes this LDAP-lookup-and-plug-into-LDAP "hack" to be attempted.

The  option affects the value of the   MTA option.

Caution: Support of the  option has been DELETED. This option must not be used.

See also:
 * alias_magic MTA Option