diff --git a/data/Dockerfiles/acme/docker-entrypoint.sh b/data/Dockerfiles/acme/docker-entrypoint.sh
index fdf67975..5aa89d75 100755
--- a/data/Dockerfiles/acme/docker-entrypoint.sh
+++ b/data/Dockerfiles/acme/docker-entrypoint.sh
@@ -172,6 +172,10 @@ while true; do
   for SQL_DOMAIN in "${SQL_DOMAIN_ARR[@]}"; do
     A_CONFIG=$(dig A autoconfig.${SQL_DOMAIN} +short | tail -n 1)
     AAAA_CONFIG=$(dig AAAA autoconfig.${SQL_DOMAIN} +short | tail -n 1)
+    # Check if CNAME without v6 enabled target
+    if [[ ! -z ${AAAA_CONFIG} ]] && [[ -z $(echo ${AAAA_CONFIG} | grep "^\([0-9a-fA-F]\{0,4\}:\)\{1,7\}[0-9a-fA-F]\{0,4\}$") ]]; then
+      AAAA_CONFIG=
+    fi
     if [[ ! -z ${AAAA_CONFIG} ]]; then
       log_f "Found AAAA record for autoconfig.${SQL_DOMAIN}: ${AAAA_CONFIG} - skipping A record check"
       if [[ $(expand ${IPV6:-"0000:0000:0000:0000:0000:0000:0000:0000"}) == $(expand ${AAAA_CONFIG}) ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
@@ -194,6 +198,10 @@ while true; do
 
     A_DISCOVER=$(dig A autodiscover.${SQL_DOMAIN} +short | tail -n 1)
     AAAA_DISCOVER=$(dig AAAA autodiscover.${SQL_DOMAIN} +short | tail -n 1)
+    # Check if CNAME without v6 enabled target
+    if [[ ! -z ${AAAA_DISCOVER} ]] && [[ -z $(echo ${AAAA_DISCOVER} | grep "^\([0-9a-fA-F]\{0,4\}:\)\{1,7\}[0-9a-fA-F]\{0,4\}$") ]]; then
+      AAAA_DISCOVER=
+    fi
     if [[ ! -z ${AAAA_DISCOVER} ]]; then
       log_f "Found AAAA record for autodiscover.${SQL_DOMAIN}: ${AAAA_DISCOVER} - skipping A record check"
       if [[ $(expand ${IPV6:-"0000:0000:0000:0000:0000:0000:0000:0000"}) == $(expand ${AAAA_DISCOVER}) ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
@@ -217,6 +225,10 @@ while true; do
 
   A_MAILCOW_HOSTNAME=$(dig A ${MAILCOW_HOSTNAME} +short | tail -n 1)
   AAAA_MAILCOW_HOSTNAME=$(dig AAAA ${MAILCOW_HOSTNAME} +short | tail -n 1)
+  # Check if CNAME without v6 enabled target
+  if [[ ! -z ${AAAA_MAILCOW_HOSTNAME} ]] && [[ -z $(echo ${AAAA_MAILCOW_HOSTNAME} | grep "^\([0-9a-fA-F]\{0,4\}:\)\{1,7\}[0-9a-fA-F]\{0,4\}$") ]]; then
+    AAAA_MAILCOW_HOSTNAME=
+  fi
   if [[ ! -z ${AAAA_MAILCOW_HOSTNAME} ]]; then
     log_f "Found AAAA record for ${MAILCOW_HOSTNAME}: ${AAAA_MAILCOW_HOSTNAME} - skipping A record check"
     if [[ $(expand ${IPV6:-"0000:0000:0000:0000:0000:0000:0000:0000"}) == $(expand ${AAAA_MAILCOW_HOSTNAME}) ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
@@ -243,6 +255,10 @@ while true; do
     fi
     A_SAN=$(dig A ${SAN} +short | tail -n 1)
     AAAA_SAN=$(dig AAAA ${SAN} +short | tail -n 1)
+    # Check if CNAME without v6 enabled target
+    if [[ ! -z ${AAAA_SAN} ]] && [[ -z $(echo ${AAAA_SAN} | grep "^\([0-9a-fA-F]\{0,4\}:\)\{1,7\}[0-9a-fA-F]\{0,4\}$") ]]; then
+      AAAA_SAN=
+    fi
     if [[ ! -z ${AAAA_SAN} ]]; then
       log_f "Found AAAA record for ${SAN}: ${AAAA_SAN} - skipping A record check"
       if [[ $(expand ${IPV6:-"0000:0000:0000:0000:0000:0000:0000:0000"}) == $(expand ${AAAA_SAN}) ]] || [[ ${SKIP_IP_CHECK} == "y" ]]; then
diff --git a/data/conf/rspamd/dynmaps/settings.php b/data/conf/rspamd/dynmaps/settings.php
index 553a9400..df331cfc 100644
--- a/data/conf/rspamd/dynmaps/settings.php
+++ b/data/conf/rspamd/dynmaps/settings.php
@@ -47,7 +47,7 @@ function ucl_rcpts($object, $type) {
       if (!empty($local) && !empty($domain)) {
         $rcpt[] = '/' . str_replace('/', '\/', $local) . '[+].*' . str_replace('/', '\/', $domain) . '/i';
       }
-      $rcpt[] = str_replace('/', '\/', $row['address']);
+      $rcpt[] = '/' . str_replace('/', '\/', $row['address']) . '/i';
     }
     // Aliases by alias domains
     $stmt = $pdo->prepare("SELECT CONCAT(`local_part`, '@', `alias_domain`.`alias_domain`) AS `alias` FROM `mailbox` 
@@ -63,9 +63,9 @@ function ucl_rcpts($object, $type) {
         $local = parse_email($row['alias'])['local'];
         $domain = parse_email($row['alias'])['domain'];
         if (!empty($local) && !empty($domain)) {
-          $rcpt[] = '/' . $local . '[+].*' . $domain . '/i';
+          $rcpt[] = '/' . str_replace('/', '\/', $local) . '[+].*' . str_replace('/', '\/', $domain) . '/i';
         }
-      $rcpt[] = $row['alias'];
+      $rcpt[] = '/' . str_replace('/', '\/', $row['alias']) . '/i';
       }
     }
   }
diff --git a/docker-compose.yml b/docker-compose.yml
index 77cbce0d..0453e622 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -298,7 +298,7 @@ services:
       depends_on:
         - nginx-mailcow
         - mysql-mailcow
-      image: mailcow/acme:1.32
+      image: mailcow/acme:1.33
       build: ./data/Dockerfiles/acme
       sysctls:
         - net.ipv6.conf.all.disable_ipv6=${SYSCTL_IPV6_DISABLED:-0}