diff --git a/group_vars/all b/group_vars/all
new file mode 100644
index 00000000..d8f9875f
--- /dev/null
+++ b/group_vars/all
@@ -0,0 +1,10 @@
+# Server Tact Variables
+# @see https://man.archlinux.org/man/systemd.time.7
+
+on_calendar_btrfs_health_check:               "*-*-* 00:00:00"
+on_calendar_journalctl_health_check:          "*-*-* 00:00:00"
+on_calendar_docker_health_check:              "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01,02:00:00"
+on_calendar_backups_cleanup:                  "*-*-* 06,12,18,00:30:00"
+on_calendar_docker_volume_backup:             "*-*-* 03:30:00"
+on_calendar_docker_compose_restart_unhealthy: "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01:30:00"
+on_calendar_pull_primary_backups:             "*-*-* 21:30:00"
\ No newline at end of file
diff --git a/roles/docker-mailu/README.md b/roles/docker-mailu/README.md
index 3a22c6ea..575f5c34 100644
--- a/roles/docker-mailu/README.md
+++ b/roles/docker-mailu/README.md
@@ -60,7 +60,7 @@ How to manage users is described here: https://mailu.io/master/cli.html
 ### database access
 To access the database execute
 ```bash
-  docker exec -it nextcloud_database_1 mysql -u nextcloud -D nextcloud -p
+  docker exec -it mailu-database-1 mysql -u root -D mailu -p
 ```
 
 ### mailu_front_1
diff --git a/roles/docker-mailu/vars/main.yml b/roles/docker-mailu/vars/main.yml
index 0d845c4b..1989bbe9 100644
--- a/roles/docker-mailu/vars/main.yml
+++ b/roles/docker-mailu/vars/main.yml
@@ -1,2 +1 @@
 mailu_front_container_name: "mailu-front-1"
-mailu_version: "1.9"
diff --git a/roles/native-backups-cleanup/handlers/main.yml b/roles/native-backups-cleanup/handlers/main.yml
index aa7db473..ad2bb49b 100644
--- a/roles/native-backups-cleanup/handlers/main.yml
+++ b/roles/native-backups-cleanup/handlers/main.yml
@@ -1,7 +1,7 @@
-- name: "restart backups-cleanup.service"
+- name: "reload backups-cleanup.service"
   systemd:
     name: backups-cleanup.service
-    state: restarted
+    state: reloaded
     enabled: yes
     daemon_reload: yes
 - name: "restart backups-cleanup.timer"
diff --git a/roles/native-backups-cleanup/tasks/main.yml b/roles/native-backups-cleanup/tasks/main.yml
index 7239b899..6a3f2f86 100644
--- a/roles/native-backups-cleanup/tasks/main.yml
+++ b/roles/native-backups-cleanup/tasks/main.yml
@@ -13,10 +13,10 @@
 
 - name: create backups-cleanup.service
   template: src=backups-cleanup.service.j2 dest=/etc/systemd/system/backups-cleanup.service
-  notify: restart backups-cleanup.service
+  notify: reload backups-cleanup.service
 
 - name: create backups-cleanup.timer
-  copy:
-    src: backups-cleanup.timer
+  template:
+    src: backups-cleanup.timer.j2
     dest: "/etc/systemd/system/backups-cleanup.timer"
   notify: restart backups-cleanup.timer
diff --git a/roles/native-backups-cleanup/files/backups-cleanup.timer b/roles/native-backups-cleanup/templates/backups-cleanup.timer.j2
similarity index 71%
rename from roles/native-backups-cleanup/files/backups-cleanup.timer
rename to roles/native-backups-cleanup/templates/backups-cleanup.timer.j2
index 141153da..ffbe6f7f 100644
--- a/roles/native-backups-cleanup/files/backups-cleanup.timer
+++ b/roles/native-backups-cleanup/templates/backups-cleanup.timer.j2
@@ -3,8 +3,7 @@ Description=starts backups-cleanup.service
 
 [Timer]
 OnBootSec=1min
-OnUnitActiveSec=3h
-RandomizedDelaySec=1h
+OnCalendar={{on_calendar_backups_cleanup}}
 
 [Install]
 WantedBy=timers.target
diff --git a/roles/native-btrfs-health-check/handlers/main.yml b/roles/native-btrfs-health-check/handlers/main.yml
index a6104905..3b37eed7 100644
--- a/roles/native-btrfs-health-check/handlers/main.yml
+++ b/roles/native-btrfs-health-check/handlers/main.yml
@@ -1,7 +1,7 @@
-- name: "restart btrfs-health-check.service"
+- name: "reload btrfs-health-check.service"
   systemd:
     name: btrfs-health-check.service
-    state: restarted
+    state: reloaded
     enabled: yes
     daemon_reload: yes
 - name: "restart btrfs-health-check.timer"
diff --git a/roles/native-btrfs-health-check/tasks/main.yml b/roles/native-btrfs-health-check/tasks/main.yml
index 5942d9de..4b1efa88 100644
--- a/roles/native-btrfs-health-check/tasks/main.yml
+++ b/roles/native-btrfs-health-check/tasks/main.yml
@@ -13,10 +13,10 @@
   template: 
     src: btrfs-health-check.service.j2
     dest: /etc/systemd/system/btrfs-health-check.service
-  notify: restart btrfs-health-check.service
+  notify: reload btrfs-health-check.service
 
 - name: create btrfs-health-check.timer
-  copy:
-    src: btrfs-health-check.timer
+  template:
+    src: btrfs-health-check.timer.j2
     dest: "/etc/systemd/system/btrfs-health-check.timer"
   notify: restart btrfs-health-check.timer
diff --git a/roles/native-btrfs-health-check/files/btrfs-health-check.timer b/roles/native-btrfs-health-check/templates/btrfs-health-check.timer.j2
similarity index 67%
rename from roles/native-btrfs-health-check/files/btrfs-health-check.timer
rename to roles/native-btrfs-health-check/templates/btrfs-health-check.timer.j2
index 9f116f74..81ea384c 100644
--- a/roles/native-btrfs-health-check/files/btrfs-health-check.timer
+++ b/roles/native-btrfs-health-check/templates/btrfs-health-check.timer.j2
@@ -2,7 +2,7 @@
 Description=starts btrfs-health-check.service
 
 [Timer]
-OnCalendar=12:00
+OnCalendar={{on_calendar_btrfs_health_check}}
 
 [Install]
 WantedBy=timers.target
diff --git a/roles/native-docker-compose-restart-unhealthy/handlers/main.yml b/roles/native-docker-compose-restart-unhealthy/handlers/main.yml
index a296836f..d16bba4c 100644
--- a/roles/native-docker-compose-restart-unhealthy/handlers/main.yml
+++ b/roles/native-docker-compose-restart-unhealthy/handlers/main.yml
@@ -1,4 +1,4 @@
-- name: "reloaded docker-compose-restart-unhealthy.service"
+- name: "reload docker-compose-restart-unhealthy.service"
   systemd:
     name: docker-compose-restart-unhealthy.service
     state: reloaded
diff --git a/roles/native-docker-compose-restart-unhealthy/tasks/main.yml b/roles/native-docker-compose-restart-unhealthy/tasks/main.yml
index 181f30f8..b3d9e773 100644
--- a/roles/native-docker-compose-restart-unhealthy/tasks/main.yml
+++ b/roles/native-docker-compose-restart-unhealthy/tasks/main.yml
@@ -13,10 +13,10 @@
   template: 
     src: docker-compose-restart-unhealthy.service.j2 
     dest: /etc/systemd/system/docker-compose-restart-unhealthy.service
-  notify: reloaded docker-compose-restart-unhealthy.service
+  notify: reload docker-compose-restart-unhealthy.service
 
 - name: create docker-compose-restart-unhealthy.timer
-  copy:
-    src: docker-compose-restart-unhealthy.timer
+  template:
+    src: docker-compose-restart-unhealthy.timer.j2
     dest: "/etc/systemd/system/docker-compose-restart-unhealthy.timer"
   notify: restart docker-compose-restart-unhealthy.timer
\ No newline at end of file
diff --git a/roles/native-docker-compose-restart-unhealthy/files/docker-compose-restart-unhealthy.timer b/roles/native-docker-compose-restart-unhealthy/templates/docker-compose-restart-unhealthy.timer.j2
similarity index 64%
rename from roles/native-docker-compose-restart-unhealthy/files/docker-compose-restart-unhealthy.timer
rename to roles/native-docker-compose-restart-unhealthy/templates/docker-compose-restart-unhealthy.timer.j2
index 6d8ab9ea..87c6146f 100644
--- a/roles/native-docker-compose-restart-unhealthy/files/docker-compose-restart-unhealthy.timer
+++ b/roles/native-docker-compose-restart-unhealthy/templates/docker-compose-restart-unhealthy.timer.j2
@@ -2,8 +2,7 @@
 Description=starts docker-compose-restart-unhealthy.service
 
 [Timer]
-OnBootSec=1min
-OnUnitActiveSec=1h
+OnCalendar={{on_calendar_docker_compose_restart_unhealthy}}
 
 [Install]
 WantedBy=timers.target
diff --git a/roles/native-docker-health-check/handlers/main.yml b/roles/native-docker-health-check/handlers/main.yml
index 8aec3318..cdaa75db 100644
--- a/roles/native-docker-health-check/handlers/main.yml
+++ b/roles/native-docker-health-check/handlers/main.yml
@@ -1,7 +1,7 @@
-- name: "restart docker-health-check.service"
+- name: "reload docker-health-check.service"
   systemd:
     name: docker-health-check.service
-    state: restarted
+    state: reloaded
     enabled: yes
     daemon_reload: yes
 - name: "restart docker-health-check.timer"
diff --git a/roles/native-docker-health-check/tasks/main.yml b/roles/native-docker-health-check/tasks/main.yml
index d11afdc2..aeecbd72 100644
--- a/roles/native-docker-health-check/tasks/main.yml
+++ b/roles/native-docker-health-check/tasks/main.yml
@@ -11,10 +11,10 @@
 
 - name: create docker-health-check.service
   template: src=docker-health-check.service.j2 dest=/etc/systemd/system/docker-health-check.service
-  notify: restart docker-health-check.service
+  notify: reload docker-health-check.service
 
 - name: create docker-health-check.timer
-  copy:
-    src: docker-health-check.timer
+  template:
+    src: docker-health-check.timer.j2
     dest: "/etc/systemd/system/docker-health-check.timer"
   notify: restart docker-health-check.timer
diff --git a/roles/native-docker-health-check/files/docker-health-check.timer b/roles/native-docker-health-check/templates/docker-health-check.timer.j2
similarity index 67%
rename from roles/native-docker-health-check/files/docker-health-check.timer
rename to roles/native-docker-health-check/templates/docker-health-check.timer.j2
index e3bb3bfb..8e019b8d 100644
--- a/roles/native-docker-health-check/files/docker-health-check.timer
+++ b/roles/native-docker-health-check/templates/docker-health-check.timer.j2
@@ -2,7 +2,7 @@
 Description=starts docker-health-check.service
 
 [Timer]
-OnCalendar=10:00
+OnCalendar={{on_calendar_docker_health_check}}
 
 [Install]
 WantedBy=timers.target
diff --git a/roles/native-docker-volume-backup/handlers/main.yml b/roles/native-docker-volume-backup/handlers/main.yml
index c366d08d..1cb7373e 100644
--- a/roles/native-docker-volume-backup/handlers/main.yml
+++ b/roles/native-docker-volume-backup/handlers/main.yml
@@ -1,7 +1,7 @@
-- name: "restart docker-volume-backup service"
+- name: "reload docker-volume-backup service"
   systemd:
     name: docker-volume-backup.service
-    state: restarted
+    state: reloaded
     enabled: yes
     daemon_reload: yes
 - name: "restart docker-volume-backup timer"
diff --git a/roles/native-docker-volume-backup/tasks/main.yml b/roles/native-docker-volume-backup/tasks/main.yml
index 25f887d1..d63ae3e2 100644
--- a/roles/native-docker-volume-backup/tasks/main.yml
+++ b/roles/native-docker-volume-backup/tasks/main.yml
@@ -8,9 +8,11 @@
     dest: "{{docker_volume_backup_folder}}"
     update: yes
 
-- name: configure docker-volume-backup.service.tpl
-  template: src=docker-volume-backup.service.j2 dest=/etc/systemd/system/docker-volume-backup.service
-  notify: restart docker-volume-backup service
+- name: configure docker-volume-backup.service
+  template: 
+    src: docker-volume-backup.service.j2
+    dest: /etc/systemd/system/docker-volume-backup.service
+  notify: reload docker-volume-backup service
 
 - name: configure docker-volume-backup.timer.tpl
   template: src=docker-volume-backup.timer.j2 dest=/etc/systemd/system/docker-volume-backup.timer
diff --git a/roles/native-docker-volume-backup/templates/docker-volume-backup.timer.j2 b/roles/native-docker-volume-backup/templates/docker-volume-backup.timer.j2
index 5d0451bc..5c576a4c 100644
--- a/roles/native-docker-volume-backup/templates/docker-volume-backup.timer.j2
+++ b/roles/native-docker-volume-backup/templates/docker-volume-backup.timer.j2
@@ -2,8 +2,7 @@
 Description=backups the docker volumes
 
 [Timer]
-OnCalendar=3:00
-RandomizedDelaySec=1h
+OnCalendar={{on_calendar_docker_volume_backup}}
 
 [Install]
 WantedBy=timers.target
diff --git a/roles/native-journalctl-health-check/handlers/main.yml b/roles/native-journalctl-health-check/handlers/main.yml
index c934f249..2b1afb60 100644
--- a/roles/native-journalctl-health-check/handlers/main.yml
+++ b/roles/native-journalctl-health-check/handlers/main.yml
@@ -1,3 +1,9 @@
+- name: "reload journalctl-health-check.service"
+  systemd:
+    name: journalctl-health-check.service
+    state: reloaded
+    enabled: yes
+    daemon_reload: yes
 - name: "restart journalctl-health-check.timer"
   systemd:
     name: journalctl-health-check.timer
diff --git a/roles/native-journalctl-health-check/tasks/main.yml b/roles/native-journalctl-health-check/tasks/main.yml
index 9b151914..ed68508c 100644
--- a/roles/native-journalctl-health-check/tasks/main.yml
+++ b/roles/native-journalctl-health-check/tasks/main.yml
@@ -10,10 +10,13 @@
     dest: "{{journalctl_health_check_folder}}journalctl-health-check.sh"
 
 - name: create journalctl-health-check.service
-  template: src=journalctl-health-check.service.j2 dest=/etc/systemd/system/journalctl-health-check.service
+  template: 
+    src: journalctl-health-check.service.j2
+    dest: /etc/systemd/system/journalctl-health-check.service
+  notify: reload journalctl-health-check.service
 
 - name: create journalctl-health-check.timer
-  copy:
-    src: journalctl-health-check.timer
-    dest: "/etc/systemd/system/journalctl-health-check.timer"
+  template:
+    src: journalctl-health-check.timer.j2
+    dest: /etc/systemd/system/journalctl-health-check.timer
   notify: restart journalctl-health-check.timer
diff --git a/roles/native-journalctl-health-check/files/journalctl-health-check.timer b/roles/native-journalctl-health-check/templates/journalctl-health-check.timer.j2
similarity index 66%
rename from roles/native-journalctl-health-check/files/journalctl-health-check.timer
rename to roles/native-journalctl-health-check/templates/journalctl-health-check.timer.j2
index ec27e6c7..13c02e73 100644
--- a/roles/native-journalctl-health-check/files/journalctl-health-check.timer
+++ b/roles/native-journalctl-health-check/templates/journalctl-health-check.timer.j2
@@ -2,7 +2,7 @@
 Description=starts journalctl-health-check.service
 
 [Timer]
-OnCalendar=00:00
+OnCalendar={{on_calendar_journalctl_health_check}}
 
 [Install]
 WantedBy=timers.target
diff --git a/roles/native-pull-primary-backups/handlers/main.yml b/roles/native-pull-primary-backups/handlers/main.yml
index fc72e9e3..40b514e7 100644
--- a/roles/native-pull-primary-backups/handlers/main.yml
+++ b/roles/native-pull-primary-backups/handlers/main.yml
@@ -1,7 +1,7 @@
-- name: "restart pull-remote-backups service"
+- name: "reload pull-remote-backups service"
   systemd:
     name: pull-remote-backups.service
-    state: restarted
+    state: reloaded
     enabled: yes
     daemon_reload: yes
 - name: "restart pull-remote-backups timer"
diff --git a/roles/native-pull-primary-backups/tasks/main.yml b/roles/native-pull-primary-backups/tasks/main.yml
index 68d587ef..09d54239 100644
--- a/roles/native-pull-primary-backups/tasks/main.yml
+++ b/roles/native-pull-primary-backups/tasks/main.yml
@@ -12,7 +12,7 @@
 
 - name: create pull-remote-backups.service
   template: src=pull-remote-backups.service.j2 dest=/etc/systemd/system/pull-remote-backups.service
-  notify: restart pull-remote-backups service
+  notify: reload pull-remote-backups service
 
 - name: create pull-remote-backups.timer
   template: src=pull-remote-backups.timer.j2 dest=/etc/systemd/system/pull-remote-backups.timer
diff --git a/roles/native-pull-primary-backups/templates/pull-remote-backups.timer.j2 b/roles/native-pull-primary-backups/templates/pull-remote-backups.timer.j2
index 254c7c80..6f4b9986 100644
--- a/roles/native-pull-primary-backups/templates/pull-remote-backups.timer.j2
+++ b/roles/native-pull-primary-backups/templates/pull-remote-backups.timer.j2
@@ -2,8 +2,7 @@
 Description=starts pull remote backup timer
 
 [Timer]
-OnCalendar=22:00
-RandomizedDelaySec=1h
+OnCalendar={{on_calendar_pull_primary_backups}}
 
 [Install]
 WantedBy=timers.target