Issue with password reset urls in Entourage

I’m having issues with password resets in the email client entourage. it seems the client is stripping the &key and &login from the url, resulting in

https://www.mydomain.com/login?action=rp=9794abQM4XncUDiu4XcM=davidj

instead of

https://www.mydomain.com/login?action=rp&key=9794abQM4XncUDiu4XcM&login=davidj

this is obviously causing issues with specifying a new password for users… is this a known issue, and if so, is there a fix?

thanks in advance!