Oneplus Three - unofficial cm13, missing stock email and exchange app - bypass

I Have the new oneplus three device
I have unlocked bootloader
installed twrp
flashed unofficial cm13
flashed arm64 gapps 6.0
this setup is missing the stock email app and calendar (yellow mail icon)
I need to bypass exchange security for an email account to prevent pushing down draconian security policies

any solutions here? I have a file called cm13.0exchange_fix20160416.zip but after flashing it with twrp it never places the files in the system/app folder like it should, any ideas?

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