diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15226c781..fa9746f8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog Fab-manager
 
 - Fix a bug: unable to export reservations
+- Fix a bug: unable to receive mails in development
 
 ## v4.5.3 2020 July 21
 
diff --git a/config/secrets.yml b/config/secrets.yml
index bdf7ff39f..7c544267f 100644
--- a/config/secrets.yml
+++ b/config/secrets.yml
@@ -14,6 +14,8 @@ development:
   secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
   default_host: <%= ENV["DEFAULT_HOST"] %>
   default_protocol: <%= ENV["DEFAULT_PROTOCOL"] %>
+  smtp_address: <%= ENV["SMTP_ADDRESS"] %>
+  smtp_port: <%= ENV["SMTP_PORT"] %>
   time_zone: <%= ENV["TIME_ZONE"] %>
   week_starting_day: <%= ENV["WEEK_STARTING_DAY"] %>
   d3_date_format: <%= ENV["D3_DATE_FORMAT"].dump %>  # .dump is needed as the value may start by a '%', see https://github.com/tenderlove/psych/issues/75