I get Relaying Denied when I POP into server

[Chris Sweeney]

I think his problem is his IP doesn't have a reverse DNS entry setup.
That's what the error message is saying.


-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Michele Neylon :: Blacknight Solutions
Sent: Tuesday, March 30, 2004 5:33 PM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: I get Relaying Denied when I POP into server

Do you have pop before smtp running?

Mr. Michele Neylon
Blacknight Internet Solutions Ltd
http://www.blacknightsolutions.ie/
http://www.search.ie/
Tel. + 353 (0)59 9137101
Lowest price domains in Ireland

> -----Original Message-----
> From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK]On
> Behalf Of YoloIts
> Sent: 30 March 2004 23:19
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: [MAILSCANNER] I get Relaying Denied when I POP into server
>
>
> I have a Red Hat Linux server running Sendmail with Mailscanner.  It
> has a private IP address behind my firewall.  I have a Windows domain
> controller with no public IPs and no public domain name which is also
> behind my firewall.  When I setup Outlook Express to POP into the
> Linux server I get the following response from Outlook Express.
>
>
>
> The message could not be sent because one of the recipients was
> rejected by the server. The rejected e-mail address was
> 'smith at PACBELL.NET'. Subject 'test', Account: 'mail.ycoe.net', Server:
> 'mail.ycoe.net', Protocol: SMTP, Server Response: '550 5.7.1
> <smith at PACBELL.NET>... Relaying denied. IP name lookup failed
> [172.28.16.254]', Port: 25, Secure(SSL): No, Server Error:
> 550, Error Number: 0x800CCC79
>
>
>
> My Linux mail server and the Windows domain controller are both
> running DNS and I have them set up to pull zone transfers but I still
> get the message "IP name lookup failed"  What am I doing wrong or what
> do I need to do?
>
>
>
> Thanks
>

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