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I'm looking for an email (outgoing only) provider that has an API. I'd be sending probably ~100 a month, maybe. The reason is because microcontrollers have a hard time with TLS and whatnot, but CURLing to an API isn't that big of a deal.

I know sendgrid offers something like this as a freemium service, but free services sometimes don't work well. Is there a service that has a very limited, cheap plan but would still offer some support if needed?

I'm looking for an email (outgoing only) provider that has an API. I'd be sending probably ~100 a month, maybe. The reason is because microcontrollers have a hard time with TLS and whatnot, but CURLing to an API isn't that big of a deal. I know sendgrid offers something like this as a freemium service, but free services sometimes don't work well. Is there a service that has a very limited, cheap plan but would still offer some support if needed?

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[–] • 2 pts

Many uCs don't have the memory or performance to do TLS. His shortcut is to want a REST API which relays for him.

Personally I believe something like mqtt to his own server which then relays is a better option.