Re: Exchange 2003 POP3

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From: Paul Nadeau [MSFT] (pnadeau_at_online.microsoft.com)
Date: 05/06/04 

Date: Thu, 6 May 2004 10:26:21 -0400

Hi Ramon,

Have you checked the client pop3 configuration? Do you have my server
requires authentication enabled?

What is the specific error when the error pops up?

POP3 client access to messages on an Exchange Server computer is regulated
by the authentication method used. There are three such authentication
methods. If Basic or Windows NT Challenge/Response authentication (Windows
NTLM authentication) is used, downloading and retrieval of messages using a
POP3 client requires access to TCP port 110. Exchange Server listens on port
110 for any incoming connection requests from POP3 clients for message
download. If the SSL (Secure Sockets Layer) authentication method is used,
the Exchange Server computer listens on port 995. Therefore, if you are
designing the packet filtering requirements of a network that includes an
Exchange installation, keep in mind the access to either TCP port 110 or
TCP port 995 if POP3 is a supported protocol.

Please check:
http://support.microsoft.com/default.aspx?scid=KB;EN-US;296387
http://support.microsoft.com/default.aspx?scid=KB;EN-US;197869
http://support.microsoft.com/default.aspx?scid=KB;EN-US;200788 

-- 
Regards,
Paul Nadeau
Microsoft PSS
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"Ramon Niese" <ramon@makosoft.nl> wrote in message
news:ehX7bH1MEHA.3096@TK2MSFTNGP12.phx.gbl...
> Hello,
>
> I have enabled pop3 on our exchange 2003 server secured with a
certificate.
> Strange thing now is that I can't download messages with a regular user
but
> I can
> do this with our administrator? I checked settings in ADUC but pop3 is
> enabled for my user.
> Outlook Express keeps asking for my password??
>
> Anyone an idea?
>
> Ramon
>
>

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