iptables -L -n
Is it allowed in the firewall?
lsof -i -n|grep sendmail
Is it listening on your external interface (or "*" for all interfaces?)
-- netmask
ssoss S (sctssoss@xxxxxxxxxxx) composed today:
hi.. I found that I cannot telnet my linux box (fedora core1) via port 25 (SMTP) but the SMTP service is started. I can telnet to localhost via port 25. May I know where is the config to control and allow me to telnet mylinux 25 from other hosts??
FYI, my sendmail version is
[root@watcher root]# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 watcher.teasin.com ESMTP Sendmail 8.12.10/8.12.10; Wed, 28 Jul 2004 22:19:17
+0800
_________________________________________________________________
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