diff --git a/manifest.json b/manifest.json
index b92f6f1..2c99641 100644
--- a/manifest.json
+++ b/manifest.json
@@ -4,7 +4,7 @@
     "packaging_format": 1,
     "license": "LGPL-2.1,GPL-2.0",
     "url": "https://sogo.nu/",
-    "version": "3.2.6-2~ynh1",
+    "version": "3.2.6-3~ynh1",
     "description": {
         "en": "Sogo is an opensource groupware for E-Mail, Contacts and Calender.",
         "fr": "Sogo est un groupware opensource pour les e-mail, contacts et calendrier" 
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 492b68a..ca96a84 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -71,16 +71,17 @@ location /Microsoft-Server-ActiveSync/ {
 }
 " >> "$nginx_config_path"
 
-
-    grep "/.well-known/caldav" $nginx_domain_path || echo "location /.well-known/caldav {
+    grep "/.well-known/caldav" $nginx_domain_path || echo "# For Caldav
+location /.well-known/caldav {
     rewrite ^ https://\$server_name/SOGo/dav/;
 }
-    " >> "$nginx_config_path"
+" >> "$nginx_config_path"
 
-    grep "/.well-known/carddav" $nginx_domain_path || echo "location /.well-known/carddav {
+    grep "/.well-known/carddav" $nginx_domain_path || echo "# For Carddav
+location /.well-known/carddav {
     rewrite ^ https://\$server_name/SOGo/dav/;
 }
-    " >> "$nginx_config_path"
+" >> "$nginx_config_path"
 
     ynh_store_file_checksum "$nginx_config_path"
 
diff --git a/scripts/add_sso_conf.py b/scripts/add_sso_conf.py
new file mode 100644
index 0000000..1fb9922
--- /dev/null
+++ b/scripts/add_sso_conf.py
@@ -0,0 +1,16 @@
+#!/usr/bin/python3
+
+import json
+
+with open("/etc/ssowat/conf.json.persistent", "r", encoding='utf-8') as jsonFile:
+    try:
+        data = json.load(jsonFile)
+    except:
+        print("File /etc/ssowat/conf.json.persistent corrupt, make a new file")
+        data = {}
+    if not "skipped_urls" in data:
+        data["skipped_urls"] = []
+    data["skipped_urls"] = list(set(data["skipped_urls"]) | set(["/Microsoft-Server-ActiveSync", "/principals"]))
+
+with open("/etc/ssowat/conf.json.persistent", "w", encoding='utf-8') as jsonFile:
+    jsonFile.write(json.dumps(data, indent=4, sort_keys=True))
diff --git a/scripts/install b/scripts/install
index 3eed672..640dde5 100755
--- a/scripts/install
+++ b/scripts/install
@@ -80,6 +80,7 @@ then	# Retire l'accès public
 else
     ynh_app_setting_set $app unprotected_uris "/"
 fi
+python3 add_sso_conf.py
 
 # SETUP LOGROTATE
 ynh_use_logrotate /var/log/$app/sogo.log --non-append
diff --git a/scripts/remove b/scripts/remove
index 3c56dfa..07da02b 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -39,5 +39,8 @@ ynh_secure_remove "/etc/$app"
 # Remove stunnel config
 ynh_secure_remove "/etc/stunnel/$app.conf"
 
+# Remove custom SSO config
+python3 remove_sso_conf.py
+
 # Remove the app-specific logrotate config
 ynh_remove_logrotate
diff --git a/scripts/remove_sso_conf.py b/scripts/remove_sso_conf.py
new file mode 100644
index 0000000..26b7420
--- /dev/null
+++ b/scripts/remove_sso_conf.py
@@ -0,0 +1,11 @@
+#!/usr/bin/python3
+
+import json
+
+with open("/etc/ssowat/conf.json.persistent", "r", encoding='utf-8') as jsonFile:
+    data = json.load(jsonFile)
+    data["skipped_urls"].remove("/Microsoft-Server-ActiveSync")
+    data["skipped_urls"].remove("/principals")
+
+with open("/etc/ssowat/conf.json.persistent", "w", encoding='utf-8') as jsonFile:
+    jsonFile.write(json.dumps(data, indent=4, sort_keys=True))
diff --git a/scripts/restore b/scripts/restore
index 521ff39..c84fca8 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -48,6 +48,8 @@ ynh_replace_string "ENABLED=0" "ENABLED=1" /etc/default/stunnel4
 # SECURE FILES AND DIRECTORIES
 set_permission
 
+python3 ../settings/scripts/add_sso_conf.py
+
 # SETUP LOGROTATE
 ynh_use_logrotate /var/log/$app/sogo.log --non-append
 
diff --git a/scripts/upgrade b/scripts/upgrade
index e84aeae..589a7e7 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -103,6 +103,7 @@ then	# Retire l'accès public
 else
     ynh_app_setting_set $app unprotected_uris "/"
 fi
+python3 add_sso_conf.py
 
 # SETUP LOGROTATE
 ynh_use_logrotate /var/log/$app/sogo.log --non-append