diff --git a/defaults/main.yml b/defaults/main.yml
index 3785d42..b5db741 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -8,6 +8,11 @@ forgejo_ssh_port: 222
 forgejo_db_username: forgejo
 forgejo_db_password: CHANGEME
 forgejo_db_database: forgejo
+# forgejo_mailer:
+#   enabled: "true"
+#   from: email@test.eu
+# https://forgejo.org/docs/latest/admin/setup/email/
+forgejo_mailer: {}
 forgejo_manage_iptables: false
 forgejo_allowed_sources: []
 forgejo_runners_version: 9.1.1
diff --git a/templates/server.env.j2 b/templates/server.env.j2
index 9334a43..99ab474 100644
--- a/templates/server.env.j2
+++ b/templates/server.env.j2
@@ -7,3 +7,8 @@ FORGEJO__database__HOST=db:5432
 FORGEJO__database__NAME="{{ forgejo_db_database }}"
 FORGEJO__database__USER="{{ forgejo_db_username }}"
 FORGEJO__database__PASSWD="{{ forgejo_db_password }}"
+{% if forgejo_mailer %}
+{% for k, v in forgejo_mailer.items() %}
+FORGEJO__mailer__{{ k | upper }}="{{ v }}"
+{% endfor %}
+{% endif %}