Re: [PLUG] Re: sendmail "host not found" error

[Alex Barylo <hash1024@yahoo.com>]

--- Kevin Falcone <kevinfal@seas.upenn.edu> wrote:
> >>>>> "EC" == Eric Cunningham <st96d92z@drexel.edu>
> writes:
> 
>   EC> My question is, does sendmail require a valid DNS
> record to
>   EC> operate correctly?  Should not sending an email
> directly to
>   EC> user@ip_address work?  We currently do not have
> any DNS record
>   EC> for this network.
> 
> If you want to send mail to a machine without a DNS
> entry, you have to
> send to user@[ip.address.here]

That's not the only way:
- add appropriate entry to /etc/hosts
- add to sendmail.mc:
   
define(`confSERVICE_SWITCH_FILE',`/etc/mail/service.switch')dnl
- create /etc/mail/service.switch containing:
    hosts files      # This is what you need,
    aliases files    # not sure if you need these
    passwd files     # two. You probably do.

Then, as usual after modifying sendmail.mc, do:
- m4 <sendmail.mc > sendmail.cf
- killall -HUP sendmail

Alex.


=====
Before the accident, I could not even spell UNIX

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