diff --git a/roles/mail/templates/dovecot-backend/conf.d/10-mail.conf b/roles/mail/templates/dovecot-backend/conf.d/10-mail.conf
index 854bacadc85ba2c40e2d5ff2197fcfe72b336fb8..850f9fcf3837ee580284a1ecd03209949d1ffe5c 100644
--- a/roles/mail/templates/dovecot-backend/conf.d/10-mail.conf
+++ b/roles/mail/templates/dovecot-backend/conf.d/10-mail.conf
@@ -212,7 +212,7 @@ first_valid_uid = 100
 
 # Space separated list of plugins to load for all services. Plugins specific to
 # IMAP, LDA, etc. are added to this list in their own .conf files.
-mail_plugins = mail_crypt stats
+mail_plugins = mail_crypt stats zlib
 
 plugin {
   # Disable encryption by default, dovecot-keylookupd will then set