Hi, I'm a newbie on FC4 & sendmail setting and need help on my sendmail setup. I applied a DSL line with dynamic IP. the goes to zoneedit for dynamic IP resolution and setup the mx record to my own mail server mail.mydomain.org. Then I can receive email addressed to myuser@xxxxxxxxxxxx without problems from yahoo and google. But the problem is: I can not send out emails to these big free mail providers, or to my working company. mailq reported "connection time out" problems. I also do simple debugging work to directly connect to these companies' mail servers, mainly "telnet mailservers.othercompany.com 25" commands,but they always timeout. "nmap -p 25 mailservers.othercompany.com " commands say that the TCP 25 ports are filtered. Any suggestions for me to send out emails? Thanks. --Robinson __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com