> >Yes, sure.  I can telnet flam 25 from flam itself.  I cannot telnet flam 25
> >from different host in the local network.
> hm what about /etc/hosts.deny, smth in there? or your firewall?

I have not much modifications from standard configuration in etc.tgz set.
I have no /etc/hosts.deny file, I have not configured any firewall.
I have almost unmodified sendmail.cf.
Connection between machines is via Wi-Fi access point D-Link 2000AP+.
Also there is configured ipsec, but I tried to disable ipsec and
I still cannot telnet to port 25 from other machine.  But I can
telnet to port 23 for example, or ssh.