Please describe the problem:
In germany, people who register at Google, have to use @googlemail.com instead @gmail.com at the end of their account mail adresses. That is because of some legal issues here in germany with a guy who has a trademark on some name similar to gmail.

So this situation is really unique, and therefore I believe not considered while developing the Google Calendar Read/Write support feature.

Watching the status bar showing the actual problem (it is doing "somebody@googlemail.com@gmail.com" when providing the whole account name or "somebody@gmail.com" providing only the first part)

The problem could be easily solved if the plugin preferences are explicitely state for the whole acoountname: somebody@whatevervalidgoogleending.com instead of assume it could only be @gmail.com.

If the plugin is written in some script language and easy to understand, I would fix this bug personally, and add a patch here, but I didnt even find the appropriate code where it is done (but perhaps I just didnt search long enough).

Steps to reproduce:
1. Use a german Googlemail account, which has the ending @googlemail.com instead of @gmail.com (because of legal issues in germany somebody@googlemail.com is the default) 
2. Make a new calendar, choosing Google
3. Enter somebody@googlemail.com or only the name
4. Watching nothing happens, watching the status bar showing the bug in the feature (doing somebody@googlemail.com@gmail.com or somebody@gmail.com)

Actual results:
Nothing happens. Bug is obvousily seeable in the status bar.

Expected results:
Seeing my Google Calendars in Evolution, with read and write support.

Does this happen every time?
Yes, because its a bug in the feature.

Other information:
Because I am using Ubuntu, I added this bug to the Launchpad also, because at my computer it affects the Evolution package who will be included in the next release, Ubuntu 8.04 "Hardy Heron".

https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/179512

I can also add a screenshot if somebody requesting it.