[andris9]

I've written an overview about the differences between Nylas and EmailEngine here: https://docs.emailengine.app/emailengine-vs-nylas/

TL;DR Nylas is hosted service that does way more than just emails. Also, it syncs all emails on monitored accounts to their DB, so when you make an API request, it hits their DB. EmailEngine is self-hosted and runs directly against the mail servers, so when you run an API request, the request ends up in the mail server. Both approaches have their pros and cons. Other than that, there aren't any other good solutions than building everything yourself by using any IMAP library.

[satvikpendem]

I appreciate the answer. I believe Nylas also has a self hostable option, just to let you, as when I was doing my research they mentioned that many secure industries like finance or healthcare wouldn't allow storage of emails on Nylas' database, so they allow self hosting. Of course, that is probably much more expensive than yours. Thanks for your last sentence as well, it clears up a bit more about the business, I asked in another thread but was just curious what types of customers need to integrate with email providers, as I'm making an email client so it's core functionality, but I assume most other industries simply use APIs from Gmail or whatever, rather than raw IMAP these days.

Edit, looks like you've answered in the other thread, thanks.