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Mass Mail sending getting error 500 (fix) | Forum

Wolfy Dec 23 '13
How to fix this: if your real error is:
SQLSTATE[08S01]: Communication link failure: 1153 Got a packet bigger than 'max_allowed_packet' bytes

You can not edit the servers my.cnf file from inside WHM, you will need to edit this file using she ssh command line. To learn how to connect to your server using ssh please see:


Once you are connected to your server with the root login using ssh, you will want to issue the following command to edit my.cnf:

# nano -w /etc/my.cnf

In this file you will want to add a line under the [mysqld] section with the following contents:


You will now want to press Ctrl + O to save, and then Ctrl + X to exit. You will now want to restart the MySQL server through WHM or on the command line with:

 # /etc/init.d/mysql restart

This will update the max_allowed_packet for cPanel/WHM's mysql.

If you still get the error increase 16M to 100M etc...

This will clear up the 500 error with mass mailing from OX Admin.

The Forum post is edited by Wolfy Dec 23 '13
Wolfy Dec 23 '13
I did this with the help of Aliia she help me understand the error and provided this fix, I decided to post it here for you as it helped me.

Thx Aliia you ROCK!!
Alia Team
Alia Dec 24 '13
Thanks for sharing Wolfy, I have created a special topic whether I gathered various SQLSTATE errors here: http://www.oxwall.org/forum/topic/15194 and included your solution there as well. Thanks again =)
Wolfy Dec 24 '13
Thank You Dear One ;)