Fix empty recipients

[DenBond7]

@martgil Please look at this one. After looking at your last videos I've found a bug. Could you share more details? Maybe you can reproduce the issue or share a raw MIME message.

[martgil]

Thanks @DenBond7 - I'll get my emulator running and share more details to you regarding this.

[martgil]

Den, I just sent the MIME message via secure email. Please check and let me know if that would be sufficient. I'll check onto the other bugs where my participation is still in need. Thank you!