In /etc/mail/sendmail.mc you will find the following line.. Either edit
and customize it to what you prefer for your system or just comment it
out..
DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')

Once you do that regenerate sendmail.cf using m4 via, 
m4 /etc/mail/sendmail.mc > /etc/sendmail.cf

Restart sendmail, and you should be OK and to your question, Yes,
sendmail does not accept connections from the outside world on a default
install of Redhat..

On Fri, 30 Nov 2001, Redhat mailing list wrote:

> 
> 
> Hi,
> 
> I just installed 7.2.  Is accepting mail turned off by default.
> Connection is refused from other host on port 25 but when i connect
> via localhost (127.0.0.1) connection on port 25 is accepted.
> 
> How do I set my box so that I can accept mails from other hosts..
> 
> thanks
> 
> carlo
> 
> 
> 
> 
> _______________________________________________
> Redhat-list mailing list
> [EMAIL PROTECTED]
> https://listman.redhat.com/mailman/listinfo/redhat-list
> 

---
"The difference between genius and stupidity is that genius has its
limits."  - Albert Einstein

Ashwin
kutty..
Systems Administrator
Dalhousie University Libraries
(902) 494-2694



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