Re: My Machine can't receive mail

["Rodolfo J. Paiz" <rpaiz indahaus com>]

At 2/1/2002 09:37 AM -0500, you wrote:
> I would venture to guess your having the same problem i had. In RHL 7.2
> Redhat made it so sendmail will not get mail from anyone but itself.
> This was done as i understand for some security reason, not sure.

This was done to reduce the number of open relays out on the Internet, to 
reduce spam. It is a very valid security concern.

> You need to edit the file: /etc/sendmail.cf

No! You should *not* edit the /etc/sendmail.cf unless you damn well know 
what you're doing. (And generally even for those people it's not necessary.)

Instead you should edit /etc/mail/sendmail.mc. At the very end there is a 
short comment with an explanation of what to change and how to change it. 
The instructions have been posted to this list many times, and I don't have 
my server handy to be sure I give you the exact answer, so I'll not provide 
many details here.

Comment out the right line by adding "dnl " at the beginning of the line. 
Save the file. Make a backup copy of /etc/sendmail.cf. Create a new 
/etc/sendmail.cf using the instructions provided inside sendmail.mc at the 
very top ("m4 /etc/mail/sendmail.mc > /etc/sendmail.cf"). Restart sendmail.


--
Rodolfo J. Paiz
rpaiz indahaus com