Problems with imap_open()

Hello everybody, I have problem with imap_open(). I've tried google - so I know, that many people have problem with this function - but I think that my problem is a little bit different or I haven't found any working answer :o( So I'm tring this forum... Please help me, if you can. My script returns this: Warning: imap_open() [function.imap-open]: Couldn't open stream {192.168.118.6:110/pop3/notls}INBOX in /var/www/html/imap.php on line 2 Can't connect to 192.168.118.6,110: Permission denied On another server (hosting server of my provider - with changed IP of POP3 server of course) this script works without problems. On my server - which is the same as the POP-server - it returns this error. When I look to the log file of pop3 server, there isn't any record about connections from my server... So I think there should be problem in my imap_open() function, my PHP or my Apache. But I don't know where :o/ I've got Apache 2.0 and PHP 5.0.4 (on Fedora Core 4). I'll be glad if anybody of you can help me. Thanks a lot! Pavel