Pakete:

• dovecot-lmtpd dovecot-sieve dovecot-managesieved (Debian 9)

/etc/dovecot/conf.d/20-lmtp.conf

protocol lmtp {
  mail_plugins = $mail_plugins sieve
}

/etc/dovecot/conf.d/90-sieve.conf

…
plugin {
…
  sieve = file:~/sieve
…

Testen:

doveconf -f service=lmtp mail_plugins

Syntax

require "fileinto";
 
#
# 2019-2-13
#
if header :contains "subject" "Termin" {
    fileinto "Inbox.Termin";
    stop;
}