On Sun, 2006-03-19 at 14:53, Mikkel L. Ellertson wrote: > > > > 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? > > > Chances are, your ISP is blocking outgoing port 25 connections. You > what a couple of choices here. One is to convince your ISP to open > up outgoing port 25 connections for you. The other is to configure > Sendmail to use your ISP's mail server as its relay host. You will > probably have more luck setting up the relay host. > > Setting up a relay host may be as simple as editing the Sendmail > config file to add the relay host, or a bit more complicated if > your ISP requires authentication in order to send mail through it. > > If you do not have experience with configuring Sendmail, you may > want to consider using Postfix instead. Most newbies find it easyer > to configure... The ISP should have provided the information about the mail server to use as a relay. Add it in /etc/mail/sendmail.mc like: define(`SMART_HOST',`my_isp_relay.com') and restart sendmail. I doubt if postfix makes it a great deal easier than that... -- Les Mikesell lesmikesell@xxxxxxxxx
