raytrails
Well-known member
I have started getting these error messages on a daily basis:
What could be the reason behind?
Code:
Symfony\Component\Mailer\Exception\TransportException: Email to *** from *** failed: Expected response code "250/251/252" but got code "554", with message "554 5.7.1 <unknown[2a02:4780:8:1225:0:2472:ae72:2]>: Client host rejected: Access denied". src/vendor/symfony/mailer/Transport/Smtp/SmtpTransport.php:307
What could be the reason behind?