Name: smtp_host
Type: STRING
Default-Value: localhost:587
Last-Modified: 3.1.4

The SMTP host to use for sending mail (also see the
:imapdconf:`smtp_backend` option).  The value of this option must the name
or IP address of a TCP host, followed optionally by a colon and the port or
service to use. The default port is 587.

TLS may be activated by appending \"/tls\" to the value.

Authentication is enabled if :imapdconf:`smtp_auth_authname` is set.
Authentication can be explicitly disabled by appending \"/noauth\" to the
host address.
