Error -17900 (authentication error) when trying to login to Exchangefrom Entourage 2004

[svloosbroek]

Whenever I try to add an Exchange account to Entourage 2004, the error
-17900 appears and tells me that the username/password is wrong. The
same credentials however work fine in either Apple Mail 10.5, on an
iPhone or in Entourage 2008. We have some Hosted Exchange 2007
accounts with our ISP and they haven't experienced this.

It doesn't really matter if the account credentials are either right
or wrong, it simply doesn't work and always generates the same error.
I looked all over the net for this -17900 error but can't find it
anywhere. My provider also doesn't have a clue. Any of you have seen
this? It must be related to Entourage 2004.

Regards,
Sander

 

[William Smith [MVP]]

Whenever I try to add an Exchange account to Entourage 2004, the error
-17900 appears and tells me that the username/password is wrong. The
same credentials however work fine in either Apple Mail 10.5, on an
iPhone or in Entourage 2008. We have some Hosted Exchange 2007
accounts with our ISP and they haven't experienced this.

It doesn't really matter if the account credentials are either right
or wrong, it simply doesn't work and always generates the same error.
I looked all over the net for this -17900 error but can't find it
anywhere. My provider also doesn't have a clue. Any of you have seen
this? It must be related to Entourage 2004.

Do you know if your hosted Exchange provider supports WebDAV
connections? Entourage 2004 will not connect the same way as Apple's
Mail or Outlook.

Can you log in to your account using Outlook Web Access (OWA)?

I have instructions for connecting Entourage 2004 to external Exchange
servers here:

"Connecting Entourage to an Exchange Server from Home"
<http://entourage.mvps.org/exchange/exchangeathome.html>

--

bill

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