Can't send email after web host installed firewall

Hi!

I'm using ZC 1.3.8a and PHP to send emails from the shop and it's been working fine until my web host installed a firewall for the server.

Now the shop doesn't send email - or it does, but the emails aren't reaching the customers nor admins.

The web host is now asking me to give them the error logs from the shop, which I have no idea where to find.

Any advices as to where I can find said error logs and/or how I can solve this email problem will be greatly appreciated.

Thanks!

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Server info:

Server OS: Linux 2.6.18-164.11.1.el5
Database: MySQL 5.0.77
HTTP Server: Apache/2.2.3 (CentOS)
PHP Version: 5.1.6 (Zend: 2.1.0)
PHP Memory Limit: 16M
PHP Safe Mode: Off
PHP File Uploads: On
Max Size: 2M
POST Max Size: 8M

The web host is now asking me to give them the error logsfrom the shop,
Man they should be telling you where they are
how I can solve this email problem will be greatly appreciated.
ZenCart only creates and passes email o the hosts MTA or mail server

It does nothing more than that and is not a mail server its' self

For a short period enable email archiving - turn off when done as it will get huge
admin > config > email options > Email Archiving Active?

This will indicate that the email was passed from ZenCart to the hosts email server and that is all the control that ZenCart has.
Once passed, it is out of ZenCarts hands

Thank you, I've activated email archiving and found the data in the database. Will tell web host to figure it out themselves. Thanks! :)