[ aria ]

虚包：mail-transport-agent

This is a virtual package. See the Debian policy for a definition of virtual packages.

负责填实 mail-transport-agent 的软件包

exim4-daemon-heavy: Exim MTA (v4) daemon with extended features, including exiscan-acl
exim4-daemon-light: lightweight Exim MTA (v4) daemon
postfix: High-performance mail transport agent