pigeonhole(7) on Linux
The text fe6fae9aec6f, as Debian 9 (Stretch) shipped it.
Overview of the Pigeonhole project's Sieve support for the Dovecot secure IMAP and POP3 server
The text fe6fae9aec6f, as Debian 9 (Stretch) shipped it.
Overview of the Pigeonhole project's Sieve support for the Dovecot secure IMAP and POP3 server