Issue with cron job: mautic:emails:send

php 8.0
mautic 4.4.8

error I get when I run mautic:emails:send

[root@vps ~]# /usr/local/bin/php /home/tsquare/public_html/mautic/bin/console mautic:emails:send

In bootstrap80.php line 21:

mb_encode_mimeheader(): Return value must be of type string, null returned

Hi, do you have the php mb extension, right?

I confirm that php mbstring is not installed. Is it mandatory?

As we try to install it has many conflicts with imunify360-ea-php-hardened repo: https://hw-screenshots.sea-proxy.windystorage.com/screenshots/2023-05-10_04-45-52x4y7vx4o-6jac-4mpa-b7cz-x421kc99fjvk.png

As we always wait for super-stable release for production, we use mostly php 7.4. I can confirm, that mbstring is installed. On the few php8.0 installs I have I also have mbstring. No problems.

I have now successfully installed the mbstring for PHP8.0 through Easy Apache4 interface in WHM. Please refer the screenshot for the confirmation:


mautic:emails:send is now working.

Thanks for your help!!! and all videos.
Thanks all for a great community

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