diff --git a/mailer.rst b/mailer.rst
index bdc50757cdd..d2af4d98af4 100644
--- a/mailer.rst
+++ b/mailer.rst
@@ -132,6 +132,10 @@ Service               Install with                                    Webhook su
 
     The AhaSend integration was introduced in Symfony 7.3.
 
+.. versionadded:: 7.4
+
+    Support for Mailtrap's sandbox environment was introduced in Symfony 7.4.
+
 .. note::
 
     As a convenience, Symfony also provides support for Gmail (``composer
@@ -177,83 +181,84 @@ transport, but you can force to use one:
 This table shows the full list of available DSN formats for each third
 party provider:
 
-+------------------------+---------------------------------------------------------+
-| Provider               | Formats                                                 |
-+========================+=========================================================+
-| `AhaSend`_             | - API ``ahasend+api://KEY@default``                     |
-|                        | - HTTP n/a                                              |
-|                        | - SMTP ``ahasend+smtp://USERNAME:PASSWORD@default``     |
-+------------------------+---------------------------------------------------------+
-| `Amazon SES`_          | - SMTP ``ses+smtp://USERNAME:PASSWORD@default``         |
-|                        | - HTTP ``ses+https://ACCESS_KEY:SECRET_KEY@default``    |
-|                        | - API ``ses+api://ACCESS_KEY:SECRET_KEY@default``       |
-+------------------------+---------------------------------------------------------+
-| `Azure`_               | - API ``azure+api://ACS_RESOURCE_NAME:KEY@default``     |
-+------------------------+---------------------------------------------------------+
-| `Brevo`_               | - SMTP ``brevo+smtp://USERNAME:PASSWORD@default``       |
-|                        | - HTTP n/a                                              |
-|                        | - API ``brevo+api://KEY@default``                       |
-+------------------------+---------------------------------------------------------+
-| `Google Gmail`_        | - SMTP ``gmail+smtp://USERNAME:APP-PASSWORD@default``   |
-|                        | - HTTP n/a                                              |
-|                        | - API n/a                                               |
-+------------------------+---------------------------------------------------------+
-| `Infobip`_             | - SMTP ``infobip+smtp://KEY@default``                   |
-|                        | - HTTP n/a                                              |
-|                        | - API ``infobip+api://KEY@BASE_URL``                    |
-+------------------------+---------------------------------------------------------+
-| `Mandrill`_            | - SMTP ``mandrill+smtp://USERNAME:PASSWORD@default``    |
-|                        | - HTTP ``mandrill+https://KEY@default``                 |
-|                        | - API ``mandrill+api://KEY@default``                    |
-+------------------------+---------------------------------------------------------+
-| `MailerSend`_          | - SMTP ``mailersend+smtp://KEY@default``                |
-|                        | - HTTP n/a                                              |
-|                        | - API ``mailersend+api://KEY@BASE_URL``                 |
-+------------------------+---------------------------------------------------------+
-| `Mailgun`_             | - SMTP ``mailgun+smtp://USERNAME:PASSWORD@default``     |
-|                        | - HTTP ``mailgun+https://KEY:DOMAIN@default``           |
-|                        | - API ``mailgun+api://KEY:DOMAIN@default``              |
-+------------------------+---------------------------------------------------------+
-| `Mailjet`_             | - SMTP ``mailjet+smtp://ACCESS_KEY:SECRET_KEY@default`` |
-|                        | - HTTP n/a                                              |
-|                        | - API ``mailjet+api://ACCESS_KEY:SECRET_KEY@default``   |
-+------------------------+---------------------------------------------------------+
-| `Mailomat`_            | - SMTP ``mailomat+smtp://USERNAME:PASSWORD@default``    |
-|                        | - HTTP n/a                                              |
-|                        | - API ``mailomat+api://KEY@default``                    |
-+------------------------+---------------------------------------------------------+
-| `MailPace`_            | - SMTP ``mailpace+api://API_TOKEN@default``             |
-|                        | - HTTP n/a                                              |
-|                        | - API ``mailpace+api://API_TOKEN@default``              |
-+------------------------+---------------------------------------------------------+
-| `Mailtrap`_            | - SMTP ``mailtrap+smtp://PASSWORD@default``             |
-|                        | - HTTP n/a                                              |
-|                        | - API ``mailtrap+api://API_TOKEN@default``              |
-+------------------------+---------------------------------------------------------+
-| `Postal`_              | - SMTP n/a                                              |
-|                        | - HTTP n/a                                              |
-|                        | - API ``postal+api://API_KEY@BASE_URL``                 |
-+------------------------+---------------------------------------------------------+
-| `Postmark`_            | - SMTP ``postmark+smtp://ID@default``                   |
-|                        | - HTTP n/a                                              |
-|                        | - API ``postmark+api://KEY@default``                    |
-+------------------------+---------------------------------------------------------+
-| `Resend`_              | - SMTP ``resend+smtp://resend:API_KEY@default``         |
-|                        | - HTTP n/a                                              |
-|                        | - API ``resend+api://API_KEY@default``                  |
-+------------------------+---------------------------------------------------------+
-| `Scaleway`_            | - SMTP ``scaleway+smtp://PROJECT_ID:API_KEY@default``   |
-|                        | - HTTP n/a                                              |
-|                        | - API ``scaleway+api://PROJECT_ID:API_KEY@default``     |
-+------------------------+---------------------------------------------------------+
-| `Sendgrid`_            | - SMTP ``sendgrid+smtp://KEY@default``                  |
-|                        | - HTTP n/a                                              |
-|                        | - API ``sendgrid+api://KEY@default``                    |
-+------------------------+---------------------------------------------------------+
-| `Sweego`_              | - SMTP ``sweego+smtp://LOGIN:PASSWORD@HOST:PORT``       |
-|                        | - HTTP n/a                                              |
-|                        | - API ``sweego+api://API_KEY@default``                  |
-+------------------------+---------------------------------------------------------+
++------------------------+----------------------------------------------------------------------------+
+| Provider               | Formats                                                                    |
++========================+============================================================================+
+| `AhaSend`_             | - API ``ahasend+api://KEY@default``                                        |
+|                        | - HTTP n/a                                                                 |
+|                        | - SMTP ``ahasend+smtp://USERNAME:PASSWORD@default``                        |
++------------------------+----------------------------------------------------------------------------+
+| `Amazon SES`_          | - SMTP ``ses+smtp://USERNAME:PASSWORD@default``                            |
+|                        | - HTTP ``ses+https://ACCESS_KEY:SECRET_KEY@default``                       |
+|                        | - API ``ses+api://ACCESS_KEY:SECRET_KEY@default``                          |
++------------------------+----------------------------------------------------------------------------+
+| `Azure`_               | - API ``azure+api://ACS_RESOURCE_NAME:KEY@default``                        |
++------------------------+----------------------------------------------------------------------------+
+| `Brevo`_               | - SMTP ``brevo+smtp://USERNAME:PASSWORD@default``                          |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``brevo+api://KEY@default``                                          |
++------------------------+----------------------------------------------------------------------------+
+| `Google Gmail`_        | - SMTP ``gmail+smtp://USERNAME:APP-PASSWORD@default``                      |
+|                        | - HTTP n/a                                                                 |
+|                        | - API n/a                                                                  |
++------------------------+----------------------------------------------------------------------------+
+| `Infobip`_             | - SMTP ``infobip+smtp://KEY@default``                                      |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``infobip+api://KEY@BASE_URL``                                       |
++------------------------+----------------------------------------------------------------------------+
+| `Mandrill`_            | - SMTP ``mandrill+smtp://USERNAME:PASSWORD@default``                       |
+|                        | - HTTP ``mandrill+https://KEY@default``                                    |
+|                        | - API ``mandrill+api://KEY@default``                                       |
++------------------------+----------------------------------------------------------------------------+
+| `MailerSend`_          | - SMTP ``mailersend+smtp://KEY@default``                                   |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``mailersend+api://KEY@BASE_URL``                                    |
++------------------------+----------------------------------------------------------------------------+
+| `Mailgun`_             | - SMTP ``mailgun+smtp://USERNAME:PASSWORD@default``                        |
+|                        | - HTTP ``mailgun+https://KEY:DOMAIN@default``                              |
+|                        | - API ``mailgun+api://KEY:DOMAIN@default``                                 |
++------------------------+----------------------------------------------------------------------------+
+| `Mailjet`_             | - SMTP ``mailjet+smtp://ACCESS_KEY:SECRET_KEY@default``                    |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``mailjet+api://ACCESS_KEY:SECRET_KEY@default``                      |
++------------------------+----------------------------------------------------------------------------+
+| `Mailomat`_            | - SMTP ``mailomat+smtp://USERNAME:PASSWORD@default``                       |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``mailomat+api://KEY@default``                                       |
++------------------------+----------------------------------------------------------------------------+
+| `MailPace`_            | - SMTP ``mailpace+api://API_TOKEN@default``                                |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``mailpace+api://API_TOKEN@default``                                 |
++------------------------+----------------------------------------------------------------------------+
+| `Mailtrap`_            | - SMTP ``mailtrap+smtp://PASSWORD@default``                                |
+|                        | - HTTP n/a                                                                 |
+|                        | - API (Live) ``mailtrap+api://API_TOKEN@default``                          |
+|                        | - API (Sandbox) ``mailtrap+sandbox://API_TOKEN@default/?inboxId=INBOX_ID`` |
++------------------------+----------------------------------------------------------------------------+
+| `Postal`_              | - SMTP n/a                                                                 |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``postal+api://API_KEY@BASE_URL``                                    |
++------------------------+----------------------------------------------------------------------------+
+| `Postmark`_            | - SMTP ``postmark+smtp://ID@default``                                      |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``postmark+api://KEY@default``                                       |
++------------------------+----------------------------------------------------------------------------+
+| `Resend`_              | - SMTP ``resend+smtp://resend:API_KEY@default``                            |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``resend+api://API_KEY@default``                                     |
++------------------------+----------------------------------------------------------------------------+
+| `Scaleway`_            | - SMTP ``scaleway+smtp://PROJECT_ID:API_KEY@default``                      |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``scaleway+api://PROJECT_ID:API_KEY@default``                        |
++------------------------+----------------------------------------------------------------------------+
+| `Sendgrid`_            | - SMTP ``sendgrid+smtp://KEY@default``                                     |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``sendgrid+api://KEY@default``                                       |
++------------------------+----------------------------------------------------------------------------+
+| `Sweego`_              | - SMTP ``sweego+smtp://LOGIN:PASSWORD@HOST:PORT``                          |
+|                        | - HTTP n/a                                                                 |
+|                        | - API ``sweego+api://API_KEY@default``                                     |
++------------------------+----------------------------------------------------------------------------+
 
 .. warning::
 

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