Bulk email solution

Hey i'm looking for some solution that would led me send around 500k-2milion emails over time, sending like 1-5k emails a day. I need 100% gmail inbox.
I went with Sendy + Amazon AWS for a good while but sometimes it will send emails to offers tab....
Thanks!

Thread moved.

if your email content is offer services type gmail will push them to offer tab only. All you need is good email content writer and continue with your SES only. Still you wont see 100% inbox with gmail

Good luck