[otrs] Sending mails

Hi everybody, I have installed OTRS in a test machine before implementing in the Office. It working fine. Tickets are coming through the mails. But the problem is I could not send mails/reply to tickets. When send the reply no errors shown to debug. I am using Qmail as my mail server. Any help -- Bipin Das Linux Administrator Spectrum Softtech Solutions (P) Ltd. Ph:+91 4842 346344 www.spectrum.net.in