# Exception when attempting to process bounced email and monitored email box

**URL:** <https://forum.mautic.org/t/exception-when-attempting-to-process-bounced-email-and-monitored-email-box/13228>\
**Category:** Product Support\
**Created:** [March 3, 2020, 11:38pm UTC](https://forum.mautic.org/t/exception-when-attempting-to-process-bounced-email-and-monitored-email-box/13228 "2020-03-03T23:38:56Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![autoize](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/autoize/32/105_2.png) [@autoize](https://forum.mautic.org/u/autoize)\
**Post date:** [March 9, 2020, 5:15pm UTC](https://forum.mautic.org/t/exception-when-attempting-to-process-bounced-email-and-monitored-email-box/13228/4 "2020-03-09T17:15:49Z")

</div>

Do you have the `php-imap` PHP module installed?  
Run the command `rpm -qa | grep php` (CentOS) or `dpkg -l | grep php` (Ubuntu) and see if it is listed.

If not, try installing it through the package manager  
`sudo apt install php-imap` (CentOS) or `sudo yum install php-imap` (Ubuntu)  
then restart your web server and the PHP-FPM process (if using PHP-FPM).

**Apache:** `sudo systemctl restart httpd` (CentOS)  
or `sudo systemctl restart apache2` (Ubuntu)  
**Nginx:** `sudo systemctl restart nginx`  
**PHP-FPM:** `sudo systemctl restart php-fpm`

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_[View the full topic](https://forum.mautic.org/t/exception-when-attempting-to-process-bounced-email-and-monitored-email-box/13228)._