That's what I thought too Tharin.  I know a lot of ISPs are blocking
email servers inside their networks to cut down on spam.  Maybe this
is somehow related to that.

Could you maybe take a look at the email headers?  Maybe there is a
weird relay there or something.

On 12/19/07, Tharin Olsen <[EMAIL PROTECTED]> wrote:
> Strange it would do that ONLY when sending mail to customer service 
> addresses. I honestly can't imagine this could be the whole story on your 
> problem. It would imply that Cox is blocking outgoing mail to particular 
> userids.
>
> Are you actually connected to a Cox internet connection and trying to deliver 
> it through the proper Cox smtp server??  Does your ISP require or support 
> SMTP authentication and have you enabled it in Eudora?
>
> Assuming you aren't making a typo in the 'To:' field of you mail client, 
> often times a smtp server will reject mail with a 553 code when the 
> person/host trying to send the mail is using a different internet provider or 
> if the from/return address on the email is not a valid address for that ISP. 
> Sometimes enabling smtp authentication in your mail client is all that needs 
> to be done.
>
> -Tharin O.
>
> Winterlight <[EMAIL PROTECTED]> wrote: Why does Cox block customer service 
> email? They have been doing this
> a long time. I can't reply with Eudora to anything from any tech
> support, or customer service, or anything like that. It gets blocked
> by COX SMTP server. I end up having to send from a web interface. It
> doesn't matter if I am sending to a big company like Logitech or a
> email vendor ,..... I have the same
>
> Can't send to ''.  The server gives this reason: '553 Sorry, that
> domain isn't in my list of allowed rcpthosts.'.
>
> error in Eudora.
>
>
>


-- 
Brian Weeden

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