Not receiving Automatic Replies

My Mautic version is: 4.4.9
My PHP version is: 7.4.33
My Database type and version is: 10.5.19-MariaDB-1:10.5.19+maria~ubu1804

My problem is:

Hello everyone,

Recently we are not receiving automatic replies set on Email Clients, for example out of offices etc… Although when manually replying to an email it works.

Is anyone else also experiencing the same issue?

Thanks in advance.

The bulk email tag generated by all mautic emails tells recipient servers not to send automatic replies back to you. This is the intended behavior.