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From: Nick Sayer <nsayer@kfu.com>
Date: Mon, 8 Nov 2004 08:33:47 -0800
To: freebsd-questions@freebsd.org
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Subject: Re: 5.3 RC2 sendmail problem
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On Nov 8, 2004, at 6:25 AM, Lowell Gilbert wrote:

> Nick Sayer <nsayer@kfu.com> writes:
>
>> Something is very wrong with sendmail in 5.3RC2.
>>
>> Under 5.2.1, my sendmail config, which is simply the default, plus a
>> SMART_HOST worked fine. Under 5.3RC2, attempts to get to the smart
>> host result in 'host name lookup failure'.
>>
>> In searching the archives, I note I am not the first to bring this up,
>> but I've found no solution.
>>
>> I'm really, really sure nothing changed except upgrading to
>> 5.3RC2. What happened?
>>
>
> I'm not seeing anything like this.
>
> Can you otherwise resolve the same hostname?

Yup.

The only thing that even seems like it may be remotely related is that 
there is no MX record for this host (only an A record). But even that 
seems like it should make no difference.