Description:

This is sieve-connect. A client for the ManageSieve protocol, as
specified in RFC 5804. Historically, this was MANAGESIEVE as implemented
by timsieved in Cyrus IMAP.

sieve-connect speaks ManageSieve and supports TLS for connection privacy
and also authentication if using client certificates. sieve-connect
will use SASL authentication; SASL integrity layers are not supported,
use TLS instead. GSSAPI-based authentication should generally work,
provided that client and server can use a common underlaying protocol.
If it doesn't work for you, please report the issue.

sieve-connect is designed to be both a tool which can be invoked from
scripts and also a decent interactive client. It should also be a
drop-in replacement for "sieveshell", as supplied with Cyrus IMAP.