XF 2.1 Swift_TransportException


Well-known member
Never have seen this before:

Swift_TransportException: Email to @gmx. failed: Expected response code 250 but got code "451", with message "451 Requested action aborted: local error in processing " src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:383

Generiert von: Unbekanntes Konto 13. Januar 2020 um 17:38

Chris D

XenForo developer
Staff member
This wouldn't be a bug.

This is informing you that an email failed to send due to a local error. Status code 451 is typically a local problem that is temporary in nature, though if it continues then you will need to contact whoever provides your SMTP server for further troubleshooting.