[Mailer] Expected response code "250" but got code "550", with message "550 MIME message is missing 'From' header since 5.4.15 #48643
Description
Symfony version(s) affected
5.4.15
Description
When bumping Symfony mailer from 5.4.13 to 5.4.15 (and 5.4.16 doesn't solve the issue), I get the error
Expected response code "250" but got code "550", with message "550 MIME message is missing 'From' header".
when trying to send a mail with Sengrid integration.
I can confirm it's related to symfony/mailer since I fixed absolutely every other dependencies when swapping between 5.4.13 and 5.4.15.
How to reproduce
We have code like this
$message = (new Email())
->to($recipient)
->from(new Address($senderEmail, $senderName))
->subject($subject);
$envelope = new Envelope(new Address($senderEmail), [new Address($recipient)]);
$body = $this->templatingService->render($mailTemplate, $data);
$message->html($body);
$this->mailer->send($message, $envelope);
which was working fine with older version.
The mailer was defined this way
$apiKey = $parameterBag->get('mailer_password');
$transport = new SendgridSmtpTransport($apiKey, $eventDispatcher);
$this->mailer = new Mailer($transport);
Possible Solution
No response
Additional Context
No response