Feature: #93668 - Possibility to configure Symfony mailer

See Issue #93668


The install tool has now the possibility to configure the Symfony mailer with DSN. Symfony provides different mail transports like SMTP, sendmail or many 3rd party email providers like AWS SES, Gmail, MailChimp, Mailgun and more. You can find all supported providers in the Symfony documentation.

In the module “Admin tools > Settings” go to card “Configure Installation-Wide Options” and open the dialog. Select “Mail” and set “[MAIL][transport]” to “dsn”.

Additionally set “[MAIL][dsn]” like described in the Symfony documentation.


  • $GLOBALS['TYPO3_CONF_VARS']['MAIL']['dsn'] = "smtp://user:pass@smtp.example.com:25"
  • $GLOBALS['TYPO3_CONF_VARS']['MAIL']['dsn'] = "sendmail://default"


If “[MAIL][transport]” is set to “dsn” all mails are sent with your configured DSN.