The Courier IMAP server


The Courier IMAP server optionally implements an experimental mail access protocol, dubbed "Simple Mail Access Protocol". SMAP is an experiment to provide enhanced mail processing beyond what's currently possible with IMAP.

SMAP is disabled by default, and must be explicitly enabled in the configuration file. SMAP's purpose is to prototype and develop advanced mail access functionality that's not possible with IMAP. Specifically:

SMAP is disabled by default. Uncomment the SMAP_CAPABILITY setting in the imapd configuration file in order to enable SMAP. The Cone mail client supports SMAP.