Extra DOVECOT_AUTH_PORT

Signed-off-by: René Jochum <rene@jochum.dev>

Readme.md

@@ -12,7 +12,8 @@ ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO postfix;
 
 ## Environment variables
 
-- DOVECOT_HOST - if not given it will be `dovecot:12345`
+- DOVECOT_HOST - Dovecot host, defaults to `dovecot`
+- DOVECOT_AUTH_PORT - Auth port, defaults to `12345`
 - MYDOMAIN
 - SUBNET
 - RELAYNETS

conf/main.cf.jinja

@@ -16,7 +16,7 @@ relayhost = {{ RELAYHOST }}
 
 # enable auth via Dovecot
 smtpd_sasl_auth_enable = yes
-smtpd_sasl_path = inet:{{ DOVECOT_HOST }}
+smtpd_sasl_path = inet:{{ DOVECOT_HOST }}:{{ DOVECOT_AUTH_PORT }}
 smtpd_sasl_type = dovecot
 
 message_size_limit = 52428800

start.py

@@ -24,7 +24,10 @@ if "MESSAGE_SIZE_LIMIT" not in os.environ:
     os.environ["MESSAGE_SIZE_LIMIT"] = 52428800
 
 if "DOVECOT_HOST" not in os.environ:
-    os.environ['DOVECOT_HOST'] = 'dovecot:12345'
+    os.environ['DOVECOT_HOST'] = 'dovecot'
+
+if "DOVECOT_AUTH_PORT" not in os.environ:
+    os.environ['DOVECOT_AUTH_PORT'] = '12345'
 
 for postfix_file in glob.glob("/conf/**/**.cf", recursive=True):
     p = pathlib.Path(postfix_file)