XF 2.2 Expected response code 250 but got code "501", with message "501 5.1.7 Bad sender address syntax

bottiger

Active member
Looks like a misconfigured spambot.

Code:
Swift_TransportException: Email to %spinfile-names.dat%%spinfile-lnames.dat%%random-1-100%@sugar.westrb.com failed: Expected response code 250 but got code "501", with message "501 5.1.7 Bad sender address syntax " src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:459

#0 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(344): Swift_Transport_AbstractSmtpTransport->assertResponseCode('501 5.1.7 Bad s...', Array)
#1 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php(305): Swift_Transport_AbstractSmtpTransport->executeCommand('MAIL FROM:<boun...', Array, Array, false, NULL)
#2 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(392): Swift_Transport_EsmtpTransport->executeCommand('DATA
', Array, Array)
#3 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(499): Swift_Transport_AbstractSmtpTransport->doDataCommand(Array)
#4 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(518): Swift_Transport_AbstractSmtpTransport->doMailTransaction(Object(Swift_Message), 'bounce+917fbaed...', Array, Array)
#5 src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(206): Swift_Transport_AbstractSmtpTransport->sendTo(Object(Swift_Message), 'bounce+917fbaed...', Array, Array)
#6 src/XF/Mail/Mailer.php(304): Swift_Transport_AbstractSmtpTransport->send(Object(Swift_Message), Array)
#7 src/XF/Mail/Queue.php(138): XF\Mail\Mailer->send(Object(Swift_Message), Object(XF\Mail\SmtpTransport), Array)
#8 src/XF/Job/MailQueue.php(12): XF\Mail\Queue->run(8)
#9 src/XF/Job/Manager.php(258): XF\Job\MailQueue->run(8)
#10 src/XF/Job/Manager.php(200): XF\Job\Manager->runJobInternal(Array, 8)
#11 src/XF/Job/Manager.php(84): XF\Job\Manager->runJobEntry(Array, 8)
#12 job.php(43): XF\Job\Manager->runQueue(false, 8)
#13 {main}
 
I think that's technically a valid email address, at least according to the standard. It almost looks like the issue is that it's resulting in an invalid envelope sender being generated. Are you able to see the full envelope sender anywhere? It should begin with "bounce"; you can see the start of it on this line:
Code:
Swift_Transport_AbstractSmtpTransport->executeCommand('MAIL FROM:<boun...', Array, Array, false, NULL)
 
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