# Processing Email Queue Causes Campaign to be Unpublished **URL:** \ **Category:** Product Support\ **Created:** [January 18, 2025, 3:26pm UTC](https://forum.mautic.org/t/processing-email-queue-causes-campaign-to-be-unpublished/34786 "2025-01-18T15:26:33Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![benhunt1](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/benhunt1/32/13272_2.png) [@benhunt1](https://forum.mautic.org/u/benhunt1)\ **Post date:** [January 18, 2025, 3:26pm UTC](https://forum.mautic.org/t/processing-email-queue-causes-campaign-to-be-unpublished/34786/1 "2025-01-18T15:26:33Z")
Hi. I’ve set up a cron job to process email, but as soon as I run the PHP script I get an email notifying me that > “Due to repeated event failures, your Test FUS campaign has been unpublished. The failing event is named Email Number one.” That email is the first in a test follow-up sequence I’ve set up. The first email should go out immediately to a new user upon registering. When I run the PHP file directly, it outputs the following line: > “Command ‘php bin/console messenger:messages:send’ failed with return code 1. Output:” Error log shows the following line: > “[2025-01-18T00:02:07.042357+01:00] mautic.ERROR: Symfony\Component\Console\Exception\NamespaceNotFoundException: There are no commands defined in the “messenger:messages” namespace. Did you mean one of these? mautic:messages messenger messenger:failed (uncaught exception) at /home/clients/b93156fc8077f844c065e6ca9fd131b7/sites/list.cyberfreedom.club/vendor/symfony/console/Application.php line 650 while running console command `UNKNOWN` [stack trace] #0…” Email settings are set to use my host’s SMTP. This is working fine for test emails. Could a non-existent email address cause a failure here? I’m doubtful. Any other ideas please? I’m stuck at this point. **Your software** My Mautic version is: v5.1.1 My PHP version is: 8.1.29 My Database type and version is: MariaDB 10.6.19