Hi
Thanks for your ideas but it still doesn't work. I am sure the DNS TTLs
will have times out by now. On other interesting thing is if I telnet from
my UNIX box to 123-reg and try to send a message that exim handles the
domain from I get the following:
telnet mx0.123-reg.co.uk 25
Trying 195.224.48.125...
Connected to mx0.123-reg.co.uk.
Escape character is '^]'.
220 two.mx.123-reg.co.uk ESMTP Exim 4.43 Tue, 19 Dec 2006 14:48:13 +0000
helo gdmckee.com
250 two.mx.123-reg.co.uk Hello
82-36-186-17.cable.ubr03.soli.blueyonder.co.uk [82.36.186.17]
mail from: gordon@???
250 OK
rcpt to: gordonmckee@???
550
data
503 valid RCPT command must precede DATA
quit
Connection closed by foreign host.
Then if I try from my other address from the exchange server I get a
different message.
telnet mx0.123-reg.co.uk 25
Trying 195.224.48.124...
Connected to mx0.123-reg.co.uk.
Escape character is '^]'.
220 three.mx.123-reg.co.uk ESMTP Exim 4.43 Tue, 19 Dec 2006 14:49:12 +0000
helo gdmckee.com
250 three.mx.123-reg.co.uk Hello gdmckee.com [82.36.186.17]
mail from: gordonmckee@???
250 OK
rcpt to: gordonmckee@???
550-Verification failed for <gordonmckee@???>
550 Sender verify failed
Many thanks
Gordon
----- Original Message -----
From: "Mike Cardwell" <exim-users@???>
To: <exim-users@???>
Sent: Monday, December 18, 2006 5:11 PM
Subject: Re: [exim] Callforward Verification
>* on the Mon, Dec 18, 2006 at 04:56:05PM -0000, Gordon McKee wrote:
>
>> I have an exim front end server and an exchange backend server. All
>> seems
>> fine except that I can't send emails to users on 123-reg's server. all
>> messages come back as:
>>
>> gordonmckee@???
>>
>> SMTP error from remote mail server after RCPT
>> TO:<gordonmckee@???>:
>>
>> host mx0.123-reg.co.uk [195.224.48.120]: 550-Verification failed for
>> <gordonmckee@???>
>>
>> 550 Sender verify failed
>
> There's nothing there to suggest 123-reg's mx's are doing callouts. It
> might be failing because the MX records for optimalprofit.com are:
>
> mail-1.optimalprofit.com
> mail-2.optimalprofit.com
>
> These are cnames, yet should be A records.
>
> Just a guess.
>
> Mike
>
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