mailcow-dockerized/data/conf/dovecot/config_templates/mail_plugins_lmtp.j2

{%- if SKIP_FTS|lower in ["y", "yes"] -%}
quota sieve acl zlib mail_crypt mail_crypt_acl notify listescape replication
{%- else -%}
quota sieve acl zlib mail_crypt mail_crypt_acl fts fts_flatcurve notify listescape replication
{%- endif -%}