I applied this application to HTC Sprint EVO none-rooted with stock Android 2.1 and it works.
This stock email.apk allowed me to resolve problem with HTC Mail for Android Version 2.00.0037.195459 not having "allow all certificates" option required to be able to Active Sync if you use self-signed certificate.
However, this version does not seem to support Exchange Calendar.
Does anybody have newest email.apk from Android 2.2 which works on 2.1 ?
They claim support for Calendar and GAL, but I don't want to upgrade to 2.2 just to get email app upgraded.