From: Jorey Bump (listjoreybump.com)
Date: Fri Dec 01 2006 - 19:15:06 CST

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Harvey Smith wrote:
> On Fri, Dec 01, 2006 at 03:34:53PM -0800, Evan Platt wrote:
>> At 03:37 PM 12/1/2006, you wrote:
>>> Evan Platt wrote:
>>>> Not sure if this is postfix related at all...
>>>>
>>>> Mail is sent from my localcomputer to postfix, then via smtpauth to
>>>> my DSL providers SMTP server:
>>>> relayhost = smtp.dslextreme.com
>>>>
>>>> Sent a e-mail to a comcast user and got a e-mail bounce:
>>>>
>>>> 204.127.225.26 does not like recipient.
>>>> Remote host said: 550 [PERMFAIL] comcast.net requires valid sender domain
>>>> Giving up on 204.127.225.26.
>>> and what is the sender address?
>> Same as what I sent to the group, evanespphotography.com
>
> There doesn't appear to be an A record for espphotography.com
>
> ; <<>> DiG 9.2.4 <<>> espphotography.com
> ;; global options: printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39378
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;espphotography.com. IN A
>
> ;; Query time: 99 msec
> ;; SERVER: 192.168.13.2#53(192.168.13.2)
> ;; WHEN: Fri Dec 1 19:10:00 2006
> ;; MSG SIZE rcvd: 36
>
> So you need to set and A record for your espphotography.com domain.

This is not true. There is an MX record for espphotography.com, so an A
record is not required.

$ host espphotography.com
espphotography.com mail is handled by 10 ns1.peskin.org.
espphotography.com mail is handled by 5 phirephoto.dyndns.org.

Maybe this is related to the use of dyndns.org, which is really a bad
idea for an MX.

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