It may be possible that your ISP is blocking SMTP traffic. Some of the ISP's do that. To send mail, use their SMTP server as a relay. I think they don't want their customers to send mails directly to avoid spam. Balaji On Monday 04 December 2000 12:14, you wrote: > I am having a problem on my LM 7.1 server running postfix. I need another > pair of eyes to help me with this. > > I am getting entries in the /var/log/main.info like: > Dec 2 21:15:17 server1 postfix/smtp[21898]: connect to > ASPIRIN.DII.utk.edu[128.169.76.123]: No route to host (port 25) Dec 2 > 21:15:20 server1 postfix/smtp[21898]: connect to > MAILHOST.CAS.utk.edu[128.169.76.44]: No route to host (port 25) > > which seems to indicate a routing problem and not a postfix problem. Also: > > [root@server1 mail]# telnet mailhost.cas.utk.edu > Trying 128.169.76.44... > Connected to mailhost.cas.utk.edu. > Escape character is '^]'. > Connection closed by foreign host. > > [root@server1 mail]# telnet mailhost.cas.utk.edu 25 > Trying 128.169.76.44... > telnet: Unable to connect to remote host: No route to host > > As you can see, I can telnet the host but NOT on port 25! Anyone have an > ideal why this fails? > > TIA, > Bill > This is not an ipchains rule blocking output to port 25.
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