Reputable email sending API

[OmegaStarScream]

I'm looking for a reputable email service (similar to Resend.com) that is very simple and straight forward to use. I don't care about receiving, just need an API to send emails, preferably within the same price range as resend (20$ for 50,000 emails a month). Must accept either BTC or any stable coin.

[NotATether]

I tried looking for this some time ago, it's quite hard to find SMTP providers that accept Bitcoin or crypto in particular. I heard Mailaroo might accept crypto but I never got to the point of making account so I have no idea. I know Nitromail supports crypto (though order times are fairly long) but that's providing an SMTP server, not an API.

SMTP2Go has an API and a free tier but I don't think it accepts crypto.