diff --git a/ansible/roles/forrest/files/prometheus/alertmanager.yml b/ansible/roles/forrest/files/prometheus/alertmanager.yml
new file mode 100644
index 0000000..2c7c5af
--- /dev/null
+++ b/ansible/roles/forrest/files/prometheus/alertmanager.yml
@@ -0,0 +1,15 @@
+global:
+  resolve_timeout: 3m
+  smtp_smarthost: smtp.eu.mailgun.org:465
+  smtp_from: "{{ alertmanager_from_address }}"
+  smtp_auth_username: "{{ alertmanager_from_address }}"
+  smtp_auth_password: "{{ alertmanager_smtp_password }}"
+
+route:
+  receiver: default
+
+receivers:
+  - name: default
+    email_configs:
+      - to: "{{ alertmanager_to_address }}"
+        send_resolved: true
diff --git a/ansible/roles/forrest/files/prometheus/docker-compose.yml b/ansible/roles/forrest/files/prometheus/docker-compose.yml
index 35b5ee5..af5bb77 100644
--- a/ansible/roles/forrest/files/prometheus/docker-compose.yml
+++ b/ansible/roles/forrest/files/prometheus/docker-compose.yml
@@ -19,6 +19,12 @@ services:
     volumes:
       - ./blackbox.yml:/etc/blackbox_exporter/config.yml
 
+  alertmanager:
+    image: prom/alertmanager:latest
+    restart: unless-stopped
+    volumes:
+      - ./alertmanager.yml:/etc/alertmanager/alertmanager.yml
+
 networks:
   grafana:
     external: true
diff --git a/ansible/roles/forrest/files/prometheus/prometheus.yml b/ansible/roles/forrest/files/prometheus/prometheus.yml
index 069732d..2d6f4b3 100644
--- a/ansible/roles/forrest/files/prometheus/prometheus.yml
+++ b/ansible/roles/forrest/files/prometheus/prometheus.yml
@@ -1,3 +1,9 @@
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+            - alertmanager:9093
+
 scrape_configs:
   - job_name: telegraf
     metric_relabel_configs:
diff --git a/ansible/roles/forrest/tasks/prometheus.yml b/ansible/roles/forrest/tasks/prometheus.yml
index 7194e30..ecdce77 100644
--- a/ansible/roles/forrest/tasks/prometheus.yml
+++ b/ansible/roles/forrest/tasks/prometheus.yml
@@ -33,3 +33,12 @@
     owner: "{{ docker_user.name }}"
   notify: restart prometheus
   become: true
+
+- name: Install alertmanager config
+  template:
+    src: files/prometheus/alertmanager.yml
+    dest: /opt/prometheus/alertmanager.yml
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+  notify: restart prometheus
+  become: true
diff --git a/ansible/roles/forrest/vars/main.yml b/ansible/roles/forrest/vars/main.yml
index d34b06f..b5c1f28 100644
--- a/ansible/roles/forrest/vars/main.yml
+++ b/ansible/roles/forrest/vars/main.yml
@@ -6,3 +6,6 @@ gitlab_liveness_access_token: "{{ vault_gitlab_liveness_access_token }}"
 prometheus_healthcheck_uuid: "{{ vault_prometheus_healthcheck_uuid }}"
 healthchecks_project_uuid: "{{ vault_healthchecks_project_uuid }}"
 healthcheck_api_token: "{{ vault_healthcheck_api_token }}"
+alertmanager_from_address: "{{ vault_alertmanager_from_address }}"
+alertmanager_smtp_password: "{{ vault_alertmanager_smtp_password }}"
+alertmanager_to_address: "{{ vault_alertmanager_to_address }}"
diff --git a/ansible/roles/forrest/vars/vault.yml b/ansible/roles/forrest/vars/vault.yml
index 82db81a..9c8b0d5 100644
--- a/ansible/roles/forrest/vars/vault.yml
+++ b/ansible/roles/forrest/vars/vault.yml
@@ -1,38 +1,49 @@
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