Best emails for botting in 2018?

Hello all,

I've been away from IM for a few years and thinking about getting back in it, but I'm curious which email service is the most viable today? Examples would be; no need for phone numbers, no risks of being banned, aren't known for being for spam etc.

I used to use outlook and yahoo, yahoo turned to shit eventually and Outlook too I believe. Gmail is a no-go obviously lol.

I have Zennoposter to make the accounts.

Thanks for any input.