Banner Option

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The banner option, (available under imap, pop, mmp, imapproxy, and popproxy, specifies a template for the welcome banner for the selected server. One line string, with virtual parameters: %h=hostname, %p=protocol (ESMTP,POP or IMAP),  %P=product-name, %v and %V=version (short or long).

For the MTA's SMTP server, SMTP SUBMIT server, and LMTP server, see the (not recommended!) CUSTOM_VERSION_STRING, or better yet see the more appropriate BANNER_ADDITION, BANNER_HOST, and BANNER_REVERSE_HOST TCP/IP-channel-specific options.

Use with imap

The banner IMAP option specifies the IMAP protocol welcome banner. The value is a one line string, with virtual parameters: %h=hostname, %p=protocol (ESMTP, POP or IMAP),  %P=product-name, %v and %V=version (short or long).


The default value in this context is:  %h %p service (%P %V)


See also:

Use with pop

The banner POP option specifies the POP protocol welcome banner. One line string, with virtual parameters: %h=hostname, %p=protocol (ESMTP,POP or IMAP),  %P=product-name, %v and %V=version (short or long).


The default value in this context is:  %h %p service (%P %V)


See also:

Use with the MMP

The banner MMP option specifies a banner replacement string. The MMP will use the string you specify for its greeting line. The default banner string contains the software name and version information:


Messaging Multiplexor (product-name version numberbit (built build-date))

See also:

Use with the IMAP proxy

The banner IMAP Proxy option specifies a banner replacement string. The IMAP Proxy will use the string you specify for its greeting line. The default banner string contains the software name and version information.


See also:

Use with the POP proxy

The banner POP Proxy option specifies a banner replacement string. The POP Proxy will use the string you specify for its greeting line. The default banner string contains the software name and version information.


See also:


See also: