Recommended Service?

After having no email since GMail stopped working in May, I'm ready to reconfigure this service. Is there a list of services that are working for folks?

iCloud generally works, but does require an app-specific password.

I use Rackspace for most of my email, but it’s a paid service. Works better than any of the free services in my opinion.

I also use GMX for testing purposes. Seems to work fine.

I'm successfully using a free-tier SendGrid account. Seems nice.

I'm successfully using a free-tier SendGrid account. Seems nice.

We use them for work, sending hundreds of thousands of emails per month and they've been rock solid in my experience.

Update: I configured SendGrid and it's been very reliable. Thanks !

I have been using icloud with an app specific password which is required for it to function. Has been working flawlessly. Was using gmail but as most know this no longer works.