Binary package “mail-stack-delivery” in ubuntu trusty

mail server delivery agent stack provided by Ubuntu server team

 Ubuntu's mail stack provides fully operational delivery with
 safe defaults and additional options. Out of the box it supports IMAP,
 POP3 and SMTP services with SASL authentication and Maildir as default
 storage engine.
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 This package contains configuration files for dovecot.
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 This package modifies postfix's configuration to integrate with dovecot