send emails from ci

.woodpecker/test.yml

@@ -10,3 +10,14 @@ pipeline:
 
     volumes:
       - /var/lib/woodpecker/nix-store/:/nix/store
+
+  notify:
+    image: drillster/drone-email
+    settings:
+      host: smtp.eu.mailgun.org
+      username: postmaster@$peninsula.industries
+      password:
+        from_secret: mailgun_token
+      from: ci@peninsula.industries
+      when:
+        - status: [ failure ]