Re: Undelivered Mail Returned to Sender?

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: Lanwench [MVP - Exchange] (lanwench_at_heybuddy.donotsendme.unsolicitedmail.atyahoo.com)
Date: 12/14/04


Date: Tue, 14 Dec 2004 09:42:42 -0500

andrewking wrote:
> We have a user whose mail is being returned/rejected with - 550
> Requested action
> not taken: mailbox unavailable Following is the complete error:This
> user mailbox exist. Spelling is correct.
> He is not over the default mailbox limits.
> He is the only user experiencing the problem. Error occurring from
> more than one sender.
> When I send him test emails from multiple accounts, he always
> receives them.
>
> Any idea what the problem could be?

What is answering at mail.dewinterassociates.com (i.e., listening on port 25
for that IP) - it claims to be "SMTP".

>
> Thanks
> Andrew
>
> **************
> This is the Postfix program at host smtp02.safesecureweb.com.
> I'm sorry to have to inform you that your message could not
> bedelivered to one or more recipients. It's attached below.For
> further assistance, please send mail to <postmaster>If you do so,
> please include this problem report. You candelete your own text from
> the attached returned message.The Postfix program
> <smeyers@dewinterassociates.com>:
> hostmail.dewinterassociates.com[66.88.126.66] said: 550 Requested
> actionnot taken: mailbox unavailable (in reply to RCPT TO
> command)***************



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