esmtp is a user-configurable relay-only Mail Transfer Agent (MTA) with
a sendmail-compatible syntax. It is based on libESMTP supporting the
AUTH (including the CRAM-MD5 and NTLM SASL mechanisms) and the
StartTLS SMTP extensions.
Features include:
* fully sendmail command-line compatible,
* supports the AUTH SMTP extension, with the CRAM-MD5 and NTLM SASL
mechanisms,
* supports the StartTLS SMTP extension,
* requires no administration privileges,
* individual user configuration,
* does not receive mail, expand aliases or manage a queue,
* local mail delivery via a MDA.
