Not sure I can help fix, but some leading questions: Is there an apache errors log along with the access log? any database error logged in the mysql log? what version of php are you using? From: users [mailto:users-bounces(a)exim4u.org] On Behalf Of Eric C Sent: Thursday, May 18, 2017 8:10 PM To: users(a)exim4u.org Subject: [Exim4U] php 500 errors Hey guys; I'm at a loss here.. Have a centOS 6.9 server, just installed, actually it's my test server, as I was looking to move from my existing mail setup to using exim4u. No extra repo's installed, (just webmin) everything updated, and upgraded with yum. - let me know if you have questions on versions. Got everything installed, and looks to be ready to roll. I hit the web interface, Log in, first time, forces a password change, complete that. Get the screen, hit add local domain. Fill in the information on the domain, and the postmaster account. Hit Submit, and get a 500 server error. Bad thing is, there is NOTHING in the Apache error log. - if I hit F5 after the 500 error, I do get a couple undefined index errors, but I don't think they are related. Here's the access log 10.10.222.76 - - [18/May/2017:19:26:15 -0400] "POST /exim4u/siteaddsubmit.php HTTP/1.1" 500 - "http://openhab.ecxx.com/exim4u/siteadd.php?type=local" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36" Errors if I hit F5. [Thu May 18 19:26:15 2017] [error] [client 10.10.222.76] PHP Notice: Undefined index: type in /home/exim4u/www/exim4u/siteaddsubmit.php on line 22 [Thu May 18 19:26:15 2017] [error] [client 10.10.222.76] PHP Notice: Undefined index: type in /home/exim4u/www/exim4u/siteaddsubmit.php on line 25 [Thu May 18 19:26:15 2017] [error] [client 10.10.222.76] PHP Notice: Undefined index: type in /home/exim4u/www/exim4u/siteaddsubmit.php on line 32 [Thu May 18 19:26:15 2017] [error] [client 10.10.222.76] PHP Notice: Undefined index: type in /home/exim4u/www/exim4u/siteaddsubmit.php on line 35 [Thu May 18 19:26:15 2017] [error] [client 10.10.222.76] PHP Notice: Undefined index: domain in /home/exim4u/www/exim4u/siteaddsubmit.php on line 39 [Thu May 18 19:26:15 2017] [error] [client 10.10.222.76] PHP Notice: Undefined index: type in /home/exim4u/www/exim4u/siteaddsubmit.php on line 40 I'm pretty decent with PHP, but I'm at a loss. Display errors is not off, I don't know what's failing. I've also looked at /var/log/messages, and see nothing there either. Any help is appreciated. Thanks