Description: ------------ CODE WAS PREVIOUSLY: Mail/mime.php on line 75: require_once 'Mail/mimePart.php'; WAS GETTING THE ERROR: [Fri Mar 14 14:07:09 2014] [error] [client 127.0.0.1] PHP Warning: require_once(Mail/mimePart.php): failed to open stream: No such file or directory in /var/www/bring-a-trailer/wp- content/plugins/batmail/Mail/mime.php on line 75 [Fri Mar 14 14:07:09 2014] [error] [client 127.0.0.1] PHP Fatal error: require_once(): Failed opening required 'Mail/mimePart.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/bring-a- trailer/wp-content/plugins/batmail/Mail/mime.php on line 75 FIXED THE ERROR BY CHANGING TO: require_once 'mimePart.php'; EXPLANATION: This file (Mail/mime.php) is already in the Mail folder. mimePart.php is also in THIS folder. so I'm removing the leading Mail/. Yup, that fixed it on my local site. I wonder why that wasn't causing a fatal error in the live site. Perhaps if there's no 'Mail" folder in ./ then newer php versions will pull some voodoo and look for a 'Mail' folder in ../ ? I'm updating my php to test this. It was still broken in an php 5.4x installation. When I upgrated to php 5.5x, my localhost webserver stopped working, so now I have bigger fish to fry than making this bug report. :-) Let me know if you have any questions. Thanks, Test script: --------------- require_once('Mail/mimePart.php')