XF 2.2 Mail stuck in queue. Where do I delete them?

[NubeBuster]

I changed around my email system and got it working. But there are still some old mail jobs trying to send mails using the invalid system. The accounts from those mails are already deleted for a day or two, how do I stop these mails from being attempted to send. They spam my error log with:

• Swift_TransportException: Email to <mail> failed: Expected response code 354 but got code "554", with message "554 5.5.1 Error: no valid recipients "
• src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:459

I already fixed the error but these mails still use the old configuration and dont stop.

My xf_mail_queue is empty. I am using SMTP

 

[Mike]

My xf_mail_queue is empty.

That's literally the only place where mail is queued, so if you're still getting errors then it sounds like there's some other issue.