diff --git a/core/dovecot/Dockerfile b/core/dovecot/Dockerfile
index 83d23b52..b37fe4d7 100644
--- a/core/dovecot/Dockerfile
+++ b/core/dovecot/Dockerfile
@@ -1,10 +1,11 @@
 FROM alpine:3.8
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip \
+    python3 py3-pip git \
   && pip3 install --upgrade pip
 # Shared layer between rspamd, postfix, dovecot, unbound and nginx
-RUN pip3 install jinja2
+RUN pip3 install jinja2 \
+  && pip3 install git+https://github.com/usrpro/MailuStart.git#egg=mailustart
 # Shared layer between rspamd, postfix, dovecot
 RUN pip3 install tenacity
 # Image specific layers under this line
diff --git a/core/dovecot/start.py b/core/dovecot/start.py
index bae92260..53999bd6 100755
--- a/core/dovecot/start.py
+++ b/core/dovecot/start.py
@@ -1,15 +1,12 @@
 #!/usr/bin/python3
 
-import jinja2
 import os
-import socket
 import glob
 import multiprocessing
-import tenacity
 import logging as log
 import sys
+from mailustart import resolve, convert
 
-from tenacity import retry
 from podop import run_server
 
 log.basicConfig(stream=sys.stderr, level=os.environ.get("LOG_LEVEL", "WARNING"))
@@ -23,23 +20,6 @@ def start_podop():
 		("sieve", "url", url),
     ])
 
-def convert(src, dst):
-    logger = log.getLogger("convert()")
-    logger.debug("Source: %s, Destination: %s", src, dst)
-    open(dst, "w").write(jinja2.Template(open(src).read()).render(**os.environ))
-
-@retry(
-    stop=tenacity.stop_after_attempt(100),
-    wait=tenacity.wait_random(min=2, max=5),
-    before=tenacity.before_log(log.getLogger("tenacity.retry"), log.DEBUG),
-    before_sleep=tenacity.before_sleep_log(log.getLogger("tenacity.retry"), log.INFO),
-    after=tenacity.after_log(log.getLogger("tenacity.retry"), log.DEBUG)
-    )
-def resolve(hostname):
-    logger = log.getLogger("resolve()")
-    logger.info(hostname)
-    return socket.gethostbyname(hostname)
-
 # Actual startup script
 os.environ["FRONT_ADDRESS"] = resolve(os.environ.get("FRONT_ADDRESS", "front"))
 os.environ["REDIS_ADDRESS"] = resolve(os.environ.get("REDIS_ADDRESS", "redis"))
diff --git a/core/postfix/Dockerfile b/core/postfix/Dockerfile
index ac9c8159..5a9bef40 100644
--- a/core/postfix/Dockerfile
+++ b/core/postfix/Dockerfile
@@ -1,10 +1,11 @@
 FROM alpine:3.8
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip \
+    python3 py3-pip git \
   && pip3 install --upgrade pip
 # Shared layer between rspamd, postfix, dovecot, unbound and nginx
-RUN pip3 install jinja2
+RUN pip3 install jinja2 \
+  && pip3 install git+https://github.com/usrpro/MailuStart.git#egg=mailustart
 # Shared layer between rspamd, postfix, dovecot
 RUN pip3 install tenacity
 # Image specific layers under this line
diff --git a/core/postfix/start.py b/core/postfix/start.py
index e3b3eb40..f113dddb 100755
--- a/core/postfix/start.py
+++ b/core/postfix/start.py
@@ -1,16 +1,13 @@
 #!/usr/bin/python3
 
-import jinja2
 import os
-import socket
 import glob
 import shutil
-import tenacity
 import multiprocessing
 import logging as log
 import sys
+from mailustart import resolve, convert
 
-from tenacity import retry
 from podop import run_server
 
 log.basicConfig(stream=sys.stderr, level=os.environ.get("LOG_LEVEL", "WARNING"))
@@ -28,23 +25,6 @@ def start_podop():
         ("senderlogin", "url", url + "sender/login/§")
     ])
 
-def convert(src, dst):
-    logger = log.getLogger("convert()")
-    logger.debug("Source: %s, Destination: %s", src, dst)
-    open(dst, "w").write(jinja2.Template(open(src).read()).render(**os.environ))
-
-@retry(
-    stop=tenacity.stop_after_attempt(100),
-    wait=tenacity.wait_random(min=2, max=5),
-    before=tenacity.before_log(log.getLogger("tenacity.retry"), log.DEBUG),
-    before_sleep=tenacity.before_sleep_log(log.getLogger("tenacity.retry"), log.INFO),
-    after=tenacity.after_log(log.getLogger("tenacity.retry"), log.DEBUG)
-    )
-def resolve(hostname):
-    logger = log.getLogger("resolve()")
-    logger.info(hostname)
-    return socket.gethostbyname(hostname)
-
 # Actual startup script
 os.environ["FRONT_ADDRESS"] = resolve(os.environ.get("FRONT_ADDRESS", "front"))
 os.environ["ADMIN_ADDRESS"] = resolve(os.environ.get("ADMIN_ADDRESS", "admin"))
diff --git a/services/rspamd/Dockerfile b/services/rspamd/Dockerfile
index 6d0cb5d0..57196a4d 100644
--- a/services/rspamd/Dockerfile
+++ b/services/rspamd/Dockerfile
@@ -1,10 +1,11 @@
 FROM alpine:3.8
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip \
+    python3 py3-pip git \
   && pip3 install --upgrade pip
 # Shared layer between rspamd, postfix, dovecot, unbound and nginx
-RUN pip3 install jinja2
+RUN pip3 install jinja2 \
+  && pip3 install git+https://github.com/usrpro/MailuStart.git#egg=mailustart
 # Shared layer between rspamd, postfix, dovecot
 RUN pip3 install tenacity
 # Image specific layers under this line
diff --git a/services/rspamd/start.py b/services/rspamd/start.py
index 744d4a9c..3febed2b 100755
--- a/services/rspamd/start.py
+++ b/services/rspamd/start.py
@@ -1,34 +1,13 @@
 #!/usr/bin/python3
 
-import jinja2
 import os
-import socket
 import glob
-import tenacity
 import logging as log
 import sys
-
-from tenacity import retry
+from mailustart import resolve, convert
 
 log.basicConfig(stream=sys.stderr, level=os.environ.get("LOG_LEVEL", "WARNING"))
 
-def convert(src, dst):
-    logger = log.getLogger("convert()")
-    logger.debug("Source: %s, Destination: %s", src, dst)
-    open(dst, "w").write(jinja2.Template(open(src).read()).render(**os.environ))
-
-@retry(
-    stop=tenacity.stop_after_attempt(100),
-    wait=tenacity.wait_random(min=2, max=5),
-    before=tenacity.before_log(log.getLogger("tenacity.retry"), log.DEBUG),
-    before_sleep=tenacity.before_sleep_log(log.getLogger("tenacity.retry"), log.INFO),
-    after=tenacity.after_log(log.getLogger("tenacity.retry"), log.DEBUG)
-    )
-def resolve(hostname):
-    logger = log.getLogger("resolve()")
-    logger.info(hostname)
-    return socket.gethostbyname(hostname)
-
 # Actual startup script
 os.environ["FRONT_ADDRESS"] = resolve(os.environ.get("FRONT_ADDRESS", "front"))