[Email File Format APIs for Go Open Source GO APIs for Email Files Read, Write & Extract Attachments from MSG & EML files via GO. Email File Format APIs for GO Include Email Free GO Library for Generating Email Message with Attachments. MailHog Free Email Testing Tool for developer, developed in GO. Hermes Free Go API to send responsive HTML email messages using email template & tables. GoEmail Free GO API, to send emails with attachments using SMTP Server. Trumail A Fast and Free Email Verification API written in Go. Mailgun-go It has included support for polling as well as email templates and enables programmers to create and send emails using SMTP Server.]