Re: [cobalt-users] raq2 - dns/mail problem? "host must resolve"

["Fathi Said" <fathi@xxxxxx>]

Do you have reverse DNS activated for your server?
This can be the reason for such errors.

Fathi


----- Original Message -----
From: David Liu <dyliu@xxxxxxxxxxx>
To: <cobalt-users@xxxxxxxxxxxxxxx>
Sent: Thursday, December 30, 1999 1:33 AM
Subject: [cobalt-users] raq2 - dns/mail problem? "host must resolve"


>
> hi folks-
> i just sent an email to someone in finland (e.g. domain.fi) and it got
> bounced back for the following reason....
>
> Your message cannot be delivered to the following recipients:
> Recipient address: someones@xxxxxxxxxxx
> Reason: Message rejected; bad return address.
> Diagnostic code: smtp; 551 <me@xxxxxxxxxxxxx>... host must resolve
>
> what happened? this has never happened before!
> below is what i have under the sysadmin page for my domain
>
> domain.com > 123.123.123.123
> www.domain.com > 123.123.123.123
> 123.123.123.123/24 > domain.com
> 123.123.123.123/24 > www.domain.com
> domain.com     mail is sent to High priority mail server     www.domain.com
>
> thanks in advance for your help!
> dave
>
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