Added Mailchain to awesome-go
@@ -611,6 +611,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [go-simple-mail](https://github.com/xhit/go-simple-mail) - Very simple package to send emails with SMTP Keep Alive and two timeouts: Connect and Send.
* [Hectane](https://github.com/hectane/hectane) - Lightweight SMTP client providing an HTTP API.
* [hermes](https://github.com/matcornic/hermes) - Golang package that generates clean, responsive HTML e-mails.
+* [mailchain](https://github.com/mailchain/mailchain) - Send encrypted emails to blockchain addresses written in Go.
* [mailgun-go](https://github.com/mailgun/mailgun-go) - Go library for sending mail with the Mailgun API.
* [MailHog](https://github.com/mailhog/MailHog) - Email and SMTP testing with web and API interface.
* [SendGrid](https://github.com/sendgrid/sendgrid-go) - SendGrid's Go library for sending email.
