courier-ldap - 1.4.1-3+deb13u1 main

The Courier mail transfer agent (MTA) is an integrated mail/groupware
server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP,
TLS, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list
services within a single, consistent, framework.
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This package contains support for LDAP authentication and
LDAP-based mail aliasing.