We have several of these in our error log.
Code:
Server error log
ErrorException: Bounce message processing failed: [E_NOTICE] Undefined index: diagnosticCode src/addons/DBTech/Mail/XF/EmailBounce/Parser.php:52
Generated by: Unknown account Aug 28, 2019 at 1:23 AM
Stack trace
#0 src/addons/DBTech/Mail/XF/EmailBounce/Parser.php(52): XF::handlePhpError(8, '[E_NOTICE] Unde...', '/home/nginx/dom...', 52, Array)
#1 src/XF/EmailBounce/Parser.php(204): DBTech\Mail\XF\EmailBounce\Parser->extractRecipient(Object(Zend\Mail\Storage\Message), Object(XF\EmailBounce\ParseResult))
#2 src/XF/EmailBounce/Processor.php(69): XF\EmailBounce\Parser->parseMessage(Object(Zend\Mail\Storage\Message))
#3 src/XF/EmailBounce/Processor.php(53): XF\EmailBounce\Processor->processMessage('Return-Path: <0...')
#4 src/XF/Job/EmailBounce.php(27): XF\EmailBounce\Processor->processFromStorage(Object(Zend\Mail\Storage\Imap), G)
#5 src/XF/Job/Manager.php(253): XF\Job\EmailBounce->run(G)
#6 src/XF/Job/Manager.php(195): XF\Job\Manager->runJobInternal(Array, G)
#7 src/XF/Job/Manager.php(79): XF\Job\Manager->runJobEntry(Array, G)
#8 job.php(42): XF\Job\Manager->runQueue(false, 8)
#9 {main}
Request state
array(4) {
["url"] => string(8) "/job.php"
["referrer"] => string(53) "https://www.northwestfirearms.com/classifieds/rifles/"
["_GET"] => array(0) {
}
["_POST"] => array(0) {
}
}