Re: Allowing mail from multiple domains

From: Phil Stracchino <>
Date: Tue, 22 Apr 2014 15:49:52 -0400

On 04/22/14 15:08, Todd Lyons wrote:
> On Tue, Apr 22, 2014 at 11:59 AM, Phil Stracchino <> wrote:
>>> % host -t txt
>>> Host not found: 3(NXDOMAIN)
>> *DOH!!!!* I don't believe I didn't see the problem before. There's
>> nothing wrong with the *record* or with the nameserver. It's the
>> underscore in the record *name*. Underscores are not valid in a domain
>> name by default.
> As I understand things, _ is not valid in a hostname, but it is valid
> in a DNS RR.

Yes, and it's legal in an IN TXT record. However, due to quirks of
bind9 implicit syntax, it was causing the next A record to fail.

I moved the _domainkey TXT record to the end of each respective zone
file, and it's now working.

  Phil Stracchino
  Babylon Communications
  Landline: 603.293.8485
Received on Tue Apr 22 2014 - 19:50:01 PST

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