Email can not receive and send after uninstall CSF

My Email can not receive and send after uninstall ConfigServer Security & Firewall script which download from http://www.configserver.com/cp/csf.html

this i attach exim log:
==============================
2006-09-11 08:59:49 1GMb5R-00010I-SX <= lalusss@thismaydomain.com U=mmugmac P=local S=672 id=2094.222.124.24.79.1157939989.squirrel@thismaydomain.com
2006-09-11 08:59:50 1GMb5R-00010I-SX == ucul4n@yahoo.co.id R=lookuphost T=remote_smtp defer (-53): retry time not reached for any host
====================================
2006-09-11 09:10:45 H=(web36314.mail.mud.yahoo.com) [209.191.91.191] sender verify defer for <ucul4n@yahoo.co.id>: Could not complete sender verify callout
2006-09-11 09:10:45 H=(web36314.mail.mud.yahoo.com) [209.191.91.191] F=<ucul4n@yahoo.co.id> temporarily rejected RCPT <lalu@mmugm.ac.id>: Could not complete sender verify callout
==============================


why?

Thanks

 

yes i've reboot it 3 times but it still not work. and i've contact chirpy too via his PM but no answer.

Thanks Brianoz

bets Regards

 

thanks Aric1. I'll try it first

 

hi Aric1 i have tried your suggestion but now the problem are:
- can not send to yahoo user
- can not send to hotmail user
- success when send and receive from gmail

=================================
this is one of the log at WHM Exim Mail Queue:

Message 1GMb2F-0000xE-JH is not frozen
delivering 1GMb2F-0000xE-JH
Connecting to mx2.mail.yahoo.com [67.28.113.70]:25 ... connected
SMTP<< 220 mta139.mail.re4.yahoo.com ESMTP YSmtp service ready
SMTP>> EHLO cpanel.mydomain.com
SMTP<< 451 Timeout waiting for command, terminating connection.
SMTP>> HELO cpanel.mydomain.com
LOG: MAIN
Remote host mx2.mail.yahoo.com [67.28.113.70] closed connection in response to HELO cpanel.mydomain.com

Thanks