Emails are not sending but test email goes fine

Product Support Mautic 6 Install/Upgrade Support
1

Hello Team,

I am using 6.0.6 version of Mautic. Installed via Coolify and Docker compose.

I have added my AWS SES SMTP and test email goes fine. But when I send a campaign or even send a custom email to specific contact it does not get sent.

I checked my server and port 587 outbound is allowed on it.

Best,
Pratik

2

Hi, you should see errors in the logs.

3

There are no errors in the logs. Not for Cronjob nor for normal Mautic Web. Also I get this log in Cron for Segment building -

In ContactSegmentQueryBuilder.php line 267:
2025-11-14T05:15:01.423333534Z
2025-11-14T05:15:01.423337944Z Circular reference detected.
2025-11-14T05:15:01.423342154Z
2025-11-14T05:15:01.423346034Z
2025-11-14T05:15:01.423505863Z mautic:segments:update [-b|–batch-limit [BATCH-LIMIT]] [-m|–max-contacts [MAX-CONTACTS]] [-i|–list-id [LIST-ID]] [-tm|–timing [TIMING]] [-d|–exclude [EXCLUDE]] [–bypass-locking] [-t|–timeout TIMEOUT] [-x|–lock_mode LOCK_MODE] [-f|–force]

4

In mautic web app logs I get this -

[2025-11-14T05:45:02.828824+00:00] mautic.ERROR: Mautic\LeadBundle\Segment\Exception\SegmentQueryException: Circular reference detected. (uncaught exception) at /var/www/html/docroot/app/bundles/LeadBundle/Segment/Query/ContactSegmentQueryBuilder.php line 267 while running console command `mautic:segments:update` [stack trace] #0 /var/www/html/docroot/app/bundles/LeadBundle/Segment/Query/ContactSegmentQueryBuilder.php(65): Mautic\LeadBundle\Segment\Query\ContactSegmentQueryBuilder->getResolutionPlan(5) #1 /var/www/html/docroot/app/bundles/LeadBundle/Segment/ContactSegmentService.php(200): Mautic\LeadBundle\Segment\Query\ContactSegmentQueryBuilder->assembleContactsSegmentQueryBuilder(5, Object(Mautic\LeadBundle\Segment\ContactSegmentFilters)) #2 /var/www/html/docroot/app/bundles/LeadBundle/Segment/ContactSegmentService.php(42): Mautic\LeadBundle\Segment\ContactSegmentService->getNewSegmentContactsQuery(Object(Mautic\LeadBundle\Entity\LeadList), Array) #3 /var/www/html/docroot/app/bundles/LeadBundle/Model/ListModel.php(330): Mautic\LeadBundle\Segment\ContactSegmentService->getNewLeadListLeadsCount(Object(Mautic\LeadBundle\Entity\LeadList), Array) #4 /var/www/html/docroot/app/bundles/LeadBundle/Command/UpdateLeadListsCommand.php(149): Mautic\LeadBundle\Model\ListModel->rebuildListLeads(Object(Mautic\LeadBundle\Entity\LeadList), 300, 0, Object(Symfony\Component\Console\Output\ConsoleOutput)) #5 /var/www/html/docroot/app/bundles/LeadBundle/Command/UpdateLeadListsCommand.php(124): Mautic\LeadBundle\Command\UpdateLeadListsCommand->rebuildSegment(Object(Mautic\LeadBundle\Entity\LeadList), 300, 0, Object(Symfony\Component\Console\Output\ConsoleOutput)) #6 /var/www/html/vendor/symfony/console/Command/Command.php(326): Mautic\LeadBundle\Command\UpdateLeadListsCommand->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) #7 /var/www/html/vendor/symfony/console/Application.php(1088): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) #8 /var/www/html/vendor/symfony/framework-bundle/Console/Application.php(126): Symfony\Component\Console\Application->doRunCommand(Object(Mautic\LeadBundle\Command\UpdateLeadListsCommand), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) #9 /var/www/html/vendor/symfony/console/Application.php(324): Symfony\Bundle\FrameworkBundle\Console\Application->doRunCommand(Object(Mautic\LeadBundle\Command\UpdateLeadListsCommand), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) #10 /var/www/html/vendor/symfony/framework-bundle/Console/Application.php(80): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) #11 /var/www/html/vendor/symfony/console/Application.php(175): Symfony\Bundle\FrameworkBundle\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) #12 /var/www/html/bin/console(16): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) #13 {main} {“hostname”:“4dc761d04fe4”,“pid”:309007}
[2025-11-14T05:45:02.829892+00:00] mautic.WARNING: Command `mautic:segments:update` exited with status code 1 {“hostname”:“4dc761d04fe4”,“pid”:309007}

Could this be the issue?