[TYPO3] mail unsubscribe link is wrong in Windows Mail (Vista)

[Daniel Doesburg [netcreators]]

Hi,

Has anybody seen this problem and solved it?

If you want to unscribe on a newsletter, you get a mail with a link.

A part of that link looks like ?&cmd=delete&aC=5d . . .

In a wellformed and polite emailclient you see this as shown above.

In pe groupwise it's displayed as: ?&cmd=delete&aC=5d . . .

But, and thats a bigger problem, the newest product from uncle Bill 
Gates (Vista) has, with Windows Mail, the same problem. And because the 
popularity of this client we have to solve this.

I didn't mentioned but you can imagine that the second version of the 
link does not do the right trick.

How, where and what can we do to fix this?

Regards,

Daniel Doesburg