hi, all my friends here, this is my first time to test bulk email marketing. the sender software is SendBlaster free edition(i only use it for studying). when i try to send a msg to one test distribution list, all the recepient mail server refused to accept that msg, here comes the error "Disconnected from server" and "Connection timed out." i know for a new comer to email marketing. there is a long way to go, the use of software, the way to compose efficient email content, so really need to know some online resources related. also please reply this thread to indicate me where might the problem located. thanks