From fffbdc10c3e4cb38a2982e8f501b38cfeba1f231 Mon Sep 17 00:00:00 2001
From: holger krekel <holger@merlinux.eu>
Date: Tue, 17 Oct 2023 01:21:06 +0200
Subject: [PATCH] minimize capabilities

---
 deploy-chatmail/src/deploy_chatmail/dovecot/dovecot.conf.j2 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/deploy-chatmail/src/deploy_chatmail/dovecot/dovecot.conf.j2 b/deploy-chatmail/src/deploy_chatmail/dovecot/dovecot.conf.j2
index 996e037c..85abe5f4 100644
--- a/deploy-chatmail/src/deploy_chatmail/dovecot/dovecot.conf.j2
+++ b/deploy-chatmail/src/deploy_chatmail/dovecot/dovecot.conf.j2
@@ -16,6 +16,12 @@ mail_debug = yes
 
 mail_plugins = quota
 
+# these are the capabilities Delta Chat cares about actually 
+# so let's keep the network overhead per login small
+# https://github.com/deltachat/deltachat-core-rust/blob/master/src/imap/capabilities.rs
+imap_capability = IMAP4rev1 IDLE MOVE QUOTA CONDSTORE
+
+
 # Authentication for system users.
 passdb {
   driver = dict