diff --git a/config/config.exs b/config/config.exs
index 16de4ecce..d609a9194 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -92,6 +92,7 @@ config :mobilizon, Mobilizon.Web.Email.Mailer,
   adapter: Bamboo.SMTPAdapter,
   server: "localhost",
   hostname: "localhost",
+  # usually 25, 465 or 587
   port: 25,
   # or {:system, "SMTP_USERNAME"}
   username: nil,
@@ -102,7 +103,6 @@ config :mobilizon, Mobilizon.Web.Email.Mailer,
   # or {":system", ALLOWED_TLS_VERSIONS"} w/ comma seprated values (e.g. "tlsv1.1,tlsv1.2")
   allowed_tls_versions: [:tlsv1, :"tlsv1.1", :"tlsv1.2"],
   # can be `true`
-  ssl: false,
   retries: 1,
   # can be `true`
   no_mx_lookups: false
diff --git a/docs/administration/configure/email.md b/docs/administration/configure/email.md
index 8cdf17b9a..bc45e57ef 100644
--- a/docs/administration/configure/email.md
+++ b/docs/administration/configure/email.md
@@ -5,19 +5,19 @@ Mobilizon requires a SMTP server to deliver emails. Using 3rd-party mail provide
 ## SMTP configuration
 
 Mobilizon default settings assumes a SMTP server listens on `localhost`, port `25`. To specify a specific server and credentials, you can add the following section in your `prod.secret.exs` file and modify credentials to your needs.
+
 ```elixir
 config :mobilizon, Mobilizon.Web.Email.Mailer,
   adapter: Bamboo.SMTPAdapter,
   server: "localhost",
   hostname: "localhost",
+  # usually 25, 465 or 587
   port: 25,
   username: nil,
   password: nil,
   # can be `:always` or `:never`
   tls: :if_available,
   allowed_tls_versions: [:tlsv1, :"tlsv1.1", :"tlsv1.2"],
-  # can be `true`
-  ssl: false,
   retries: 1,
   # can be `true`
   no_mx_lookups: false,