diff --git a/.gitignore b/.gitignore
index 6076d364..cb8562bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,8 +3,6 @@
 /config/database.yml
 /config/mnemosyne.yml
 /config/secrets.yml
-/config/sendmail.yml
-/config/smtp.yml
 /config/docker.yml*.erb
 /config/*.production.yml
 /config/*.staging.yml
diff --git a/LOCAL_SETUP.md b/LOCAL_SETUP.md
index e8c70163..37585191 100644
--- a/LOCAL_SETUP.md
+++ b/LOCAL_SETUP.md
@@ -138,7 +138,7 @@ admin@example.org:admin
   ```
 - Get a local copy of the config files:
   ```shell script
-  for f in action_mailer.yml database.yml secrets.yml sendmail.yml smtp.yml code_ocean.yml docker.yml.erb mnemosyne.yml
+  for f in action_mailer.yml database.yml secrets.yml code_ocean.yml docker.yml.erb mnemosyne.yml
   do
     if [ ! -f config/$f ]
     then
diff --git a/config/initializers/sendmail.rb b/config/initializers/sendmail.rb
deleted file mode 100644
index cbb09a44..00000000
--- a/config/initializers/sendmail.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-if CodeOcean::Application.config.action_mailer.delivery_method == :sendmail
-  CodeOcean::Application.config.action_mailer.sendmail_settings = CodeOcean::Config.new(:sendmail).read
-end
diff --git a/config/initializers/smtp.rb b/config/initializers/smtp.rb
deleted file mode 100644
index 5db96f29..00000000
--- a/config/initializers/smtp.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-if CodeOcean::Application.config.action_mailer.delivery_method == :smtp
-  CodeOcean::Application.config.action_mailer.sendmail_settings = CodeOcean::Config.new(:smtp).read
-end
diff --git a/config/sendmail.yml.example b/config/sendmail.yml.example
deleted file mode 100644
index b14b144c..00000000
--- a/config/sendmail.yml.example
+++ /dev/null
@@ -1,11 +0,0 @@
-default: &default
-  arguments: CHANGE_ME
-
-development:
-  <<: *default
-
-production:
-  <<: *default
-
-test:
-  <<: *default
diff --git a/config/smtp.yml.example b/config/smtp.yml.example
deleted file mode 100644
index 1ef541ae..00000000
--- a/config/smtp.yml.example
+++ /dev/null
@@ -1,14 +0,0 @@
-default: &default
-  address: CHANGE_ME
-  password: CHANGE_ME
-  port: CHANGE_ME
-  user_name: CHANGE_ME
-
-development:
-  <<: *default
-
-production:
-  <<: *default
-
-test:
-  <<: *default