I'm using FC5 (32bit) with ISPConfig 2.2.6 all scripts websites were working 100% until last Friday when a customer report a problem with a mail sending script. This customer does not upload files - we do & nothing had been done to their website in months. I've tried another instance of the script on another website (my own) & got this error message - which is the same as the error message on the customers website. Warning: fopen(http://www.mydomain.co.uk/password.php?cid=55) [function.fopen]: failed to open stream: Connection timed out in /home/www/web2/web/ScriptLibrary/incSmartMailer.php on line 141 Error sending e-mail PHP.INI has not changed - Fopen is ON - the SMTP settings are correct (for sending mail). I don't think this is related but... I found hundreds of this -> [error] an unknown filter was not added: PHP <- in my httpd error_log & I've applied the fix you suggested http://www.howtoforge.com/forums/showthread.php?t=4770&highlight=unknown filter (which appears to have worked). Odd because I thought this was previously changed - maybe when I updated from 2.2.5. to 2.2.6 the config file was replaced? Any suggestions please. Thanks Martin As a 'last resort' I thought I'd try a server reboot - and now it appears to be working. Not the best solution - I would like to try to find the reason it stoped - so any ideas would be welcome. thanks.