diff --git a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/Dockerfile b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/Dockerfile
index 72f7d81..f08600a 100644
--- a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/Dockerfile
+++ b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/Dockerfile
@@ -2,7 +2,7 @@
 LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
 ARG DEBIAN_FRONTEND=noninteractive
-ARG SOGO_DEBIAN_REPOSITORY=http://packages.inverse.ca/SOGo/nightly/5/debian/
+ARG SOGO_DEBIAN_REPOSITORY=http://packages.sogo.nu/nightly/5/debian/
 ENV LC_ALL C
 ENV GOSU_VERSION 1.14
 
@@ -30,7 +30,7 @@
   && gosu nobody true \
   && mkdir /usr/share/doc/sogo \
   && touch /usr/share/doc/sogo/empty.sh \
-  && apt-key adv --keyserver keyserver.ubuntu.com --recv-key 0x810273C4 \
+  && apt-key adv --keyserver keys.openpgp.org --recv-key 74FFC6D72B925A34B5D356BDF8A27B36A6E2EAE9 \
   && echo "deb ${SOGO_DEBIAN_REPOSITORY} bullseye bullseye" > /etc/apt/sources.list.d/sogo.list \
   && apt-get update && apt-get install -y --no-install-recommends \
     sogo \
@@ -52,4 +52,4 @@
 
 ENTRYPOINT ["/docker-entrypoint.sh"]
 
-CMD exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
+CMD exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
\ No newline at end of file
diff --git a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/bootstrap-sogo.sh b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/bootstrap-sogo.sh
index 04472df..aa15525 100755
--- a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/bootstrap-sogo.sh
+++ b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/bootstrap-sogo.sh
@@ -142,6 +142,10 @@
     <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_acl</string>
     <key>SOGoIMAPServer</key>
     <string>imap://${IPV4_NETWORK}.250:143/?TLS=YES&amp;tlsVerifyMode=none</string>
+    <key>SOGoSieveServer</key>
+    <string>sieve://${IPV4_NETWORK}.250:4190/?TLS=YES&amp;tlsVerifyMode=none</string>
+    <key>SOGoSMTPServer</key>
+    <string>smtp://${IPV4_NETWORK}.253:588/?TLS=YES&amp;tlsVerifyMode=none</string>
     <key>SOGoTrustProxyAuthentication</key>
     <string>YES</string>
     <key>SOGoEncryptionKey</key>
diff --git a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng-redis_slave.conf b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng-redis_slave.conf
index 5a84b72..9b460bd 100644
--- a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng-redis_slave.conf
+++ b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng-redis_slave.conf
@@ -1,4 +1,4 @@
-@version: 3.19
+@version: 3.28
 @include "scl.conf"
 options {
   chain_hostnames(off);
diff --git a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng.conf b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng.conf
index 537038e..889a3f3 100644
--- a/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng.conf
+++ b/mailcow/src/mailcow-dockerized/data/Dockerfiles/sogo/syslog-ng.conf
@@ -1,4 +1,4 @@
-@version: 3.19
+@version: 3.28
 @include "scl.conf"
 options {
   chain_hostnames(off);