Error sending email after migrating to Symfony

Automatically closed - issue fixed for 2 weeks with no activity.

hi I have the same issue can someone please explain how this was marked as fixed ? what do i have to do to fix it ?
thank you

We had the same problem. I changed the default Mailer Transport to be Sendmail, and that stopped the error.

( https://www.drupal.org/docs/contributed-modules/drupal-symfony-mailer/ge... → says "By default, Symfony Mailer uses the sendmail transport.", but when I checked our configuration at /admin/config/system/mailer/transport it showed the default Mailer Transport was set as "SMTP".)