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I have this answer from IBM regarding conection between my Iphone 3G and Lotus Live:
IPhone 3G and early iPod Touch devices cannot connect to the Lotus Traveler service on LotusLive Notes
This issue also applies to Lotus Traveler services where the authentication mechanism requires HTTP session cookies as part of its authentication scheme.
There is a known issue with Apple iPhone 3G and early iPod Touch models running iOS 4 that prevent it from using HTTP session cookies in the Exchange ActiveSync account. If you are using one of these devices that has been upgraded to iOS 4, and you are trying to connect to a Lotus Traveler service that requires HTTP session cookies, such as LotusLive Notes, then the device will fail to connect to the service. After manually configuring the account or installing a profile, when you open the Inbox or other folder in the mail application, you will see the generic error Cannot Get Mail : The connection to the server failed..
Further examination of network traces would show that the Apple device is making its request without the requested session cookie and instead there is a header in the data named X-Bad-iPhone-No-Cookie.
The IBM workaround is:
Contact Apple support for a profile that can be installed to enable HTTP session cookies for the Exchange ActiveSync account....
Does somebody had this issue and how it was solved?
Iphone 3G iOS 4