Send and receive SMTP-based e-mail from sessions and/or batch
jobs.
Deliver local e-mail to mailboxes, files, or programs.
A vast selection of tunable performance parameters.
Highly flexible and extremely powerful configuration
language.
Access control for accepting or rejecting incoming e-mail.
Message header rewriting capabilities.
Modular feature set allows you to configure exactly the
functionality you want; the following optional features have been
configured by default in this distribution:
access_db
domaintable
genericstable
mailertable
virtusertable
Open-source robustness and reliability.
Compatibility with the HP-UX Sendmail file layout.