Update to alpine 3.15

Dockerfile

@@ -1,9 +1,8 @@
-From lsiobase/alpine:3.13
+From lsiobase/alpine:3.15
 
 ENV \
 	USE_SASL= \
-	# Works around an sasldb bug in Alpine 3.13 \
-        USE_SASLAUTHD=yes \
+        USE_SASLAUTHD=no \
 	USE_DKIM= \
 	USE_TLS= \
 	MYHOSTNAME= \

Makefile

@@ -4,7 +4,6 @@ VOLUMES= \
     -v ${PWD}/config:/config
 ENV= \
     -e USE_SASL=yes \
-    -e USE_SASLAUTHD=yes \
     -e USE_TLS=yes \
     -e MYHOSTNAME=home.honig.net \
     -e MYORIGIN=honig.net \
@@ -23,7 +22,7 @@ run: build
 	docker run ${VOLUMES} ${ENV} ${PORTS} -it ${IMAGE}:${TAG}
 
 sasl_users: build
-	docker run ${VOLUMES} ${ENV} ${PORTS} -it ${IMAGE}:${TAG} sasl_users
+	docker run ${VOLUMES} ${ENV} ${PORTS} -it ${IMAGE}:${TAG} update_sasldb_users
 
 # Run the container with just a bash shell
 run-bash: build

README.md

@@ -75,7 +75,6 @@ services:
 + When USE_TLS is enabled, /config/server.cert and /config/server.key should must exist
 + When using SASL, /config/sasl.users should should have one entry 	per line of user and password seperated by a space
 + When using SASL, run *update_sasldb_users when that file is updated
-+ When using SASL, a bug in Alpine 3.13 requires USE_SASLAUTHD=yes
 + Additonal postfix configuration can be stored in /config/postconf as arguments to the postconf command
 
 ## TODO