unable to use http account to connect to exchange server

[Blanton]

I would love to use Outlook's http account type to connect to exchange, but
it doesn't work when I use https:. Last night I did a packet capture and,
funny enough, it sent the http data to port 443 (https) but the data it sent
was in the clear, not encrypted! I could see in the packet where it said
'propfind', etc

I've set up the URL as https://<site>/exchange/<username>

Strange thing is that I've gotten it to work once or twice - sending and
receiving. Here are a few log lines from the server:

[This is when I didn't use https:, note return code is 403 which is
'forbidden' b/c I don't allow non-SSL access]
2006-06-13 18:11:05 192.168.7.110 - W3SVC100 MAIL [server.IP.address] 80
PROPFIND /exchange/blanton-lewis/inbox - 403 5 3942 228 16 HTTP/1.1
[server.DNS.name] Microsoft-Outlook/10.0+(TmstmpExt) - -

[This is one of the few times it worked]
2006-06-13 20:56:02 192.168.7.110 blanton-lewis W3SVC100 MAIL
[server.IP.address] 443 PROPFIND /exchange/blanton-lewis/inbox - 207 0 1281
650 1484 HTTP/1.1 [server.DNS.name] Microsoft-Outlook/10.0+(TmstmpExt)

[This is sending an email]
2006-06-13 20:56:02 192.168.7.110 blanton-lewis W3SVC100 MAIL
[server.IP.address] 443 POST
/exchange/blanton-lewis/##DavMailSubmissionURI##/ - 200 0 583 1621 47
HTTP/1.1 [server.DNS.name] Microsoft-Outlook/10.0+(TmstmpExt)
sessionid=f2cd3c59-e150-41ba-a0c5-8f3fef2bd48e:0x0 -

Most of the time it just says - 'timed out connecting to server' because (I
believe) it's not encrypting the communication, it's just sending it to port
443.

 

[Sue Mosher [MVP-Outlook]]

That's a known limitation. Outlook needs an http:// URL, not https://. The times that it seemed to work for you were apparently flukes.

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003

and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers

 

[Dan Pilone]

Do you know if there's any rumor of this changing in Outlook 2007? Is there
some other way around it? Maybe a simple HTTP proxy that jumped from a local
HTTP connection to a remote HTTPS connection.. hmmm... Thanks -- Dan

 

[Diane Poremsky [MVP]]

No, outlook 2007 doesn't use https either. What version of exchange? if 2003
and up, they really need to enable rpc/http.

Using http protocol to access exchange was not intended (and not
supported) - http is for accounts like hotmail, not business mail.

--
Diane Poremsky [MVP - Outlook]
Author, Teach Yourself Outlook 2003 in 24 Hours
Coauthor, OneNote 2003 for Windows (Visual QuickStart Guide)
Need Help with Common Tasks? http://www.outlook-tips.net/beginner/



Subscribe to Exchange Messaging Outlook newsletter:
(e-mail address removed)