Defaultdomain Option

When POP, IMAP and SMTP users authenticate, they typically provide an unqualified user ID (a user ID without a domain portion). The value of the  option is appended to unqualified user IDs. When used as an MMP virtual domain option, this allows a single MMP server with multiple IP addresses to support unqualified user IDs for multiple hosted domains. This may also be set as a service-wide option.

Use with base
 The  base option specifies the Messaging Server default domain. This is used to determine whether a domain is the default domain or a hosted domain.

Normally the  base option is set to an appropriate value during initial configuration.

The MTA has a "twin" option,, that can override the   base option for MTA purposes. See the description of  for details on how the MTA uses the   value (if   is not set).

See also:
 * ldap_default_domain MTA Option
 * Base options

See also:
 * Base options
 * IMAP options
 * POP options
 * MMP and IMAP Proxy and POP Proxy and vdomain options
 * vdomain options