I install to Centos 6.3 minimal install zcs-8.0.0_GA_5434.RHEL6_64.20120907144639

everyting is okay use to webmail but I can configre MS outlook 2010 and thunderbird 15 is not working smtp configrasyon.

mail is arrival is outlook but is not send it smpt, I change to port, use to TLS cert, close "service sendmail stop" but is not working smtp

how can I solve this problem ?

thank you