1. github.com/go-gomail/gomail

The best way to send emails in Go.

AI-generatedSimple and efficient email sending package for Go.

2. github.com/matcornic/hermes

Golang package that generates clean, responsive HTML e-mails for sending transactional mail

3. github.com/jordan-wright/email

Robust and flexible email library for Go

AI-generatedFlexible and robust email library for the Go programming language.

4. github.com/emersion/go-imap

📥 An IMAP library for clients and servers

AI-generatedGo library for IMAP4rev2 protocol.

5. github.com/emersion/go-smtp

📤 An SMTP client & server library written in Go

AI-generatedSMTP client and server library for ESMTP protocol implementation.

6. github.com/emersion/hydroxide

A third-party, open-source ProtonMail CardDAV, IMAP and SMTP bridge

AI-generatedProtonMail third-party bridge for email clients and Git.

7. github.com/mailslurper/mailslurper

Local, web-based mail server application. Slurp mails into oblivion!

AI-generatedA simple SMTP mail server for testing email functionality.

8. github.com/jessfraz/gmailfilters

A tool to sync Gmail filters from a config file to your account.

AI-generatedGmail filter synchronizer tool in Go language.

9. github.com/xhit/go-simple-mail

Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.

10. github.com/jhillyerd/enmime

MIME mail encoding and decoding package for Go

AI-generatedMIME encoding and decoding library for Go email messages.

11. github.com/mhale/smtpd

An SMTP server package written in Go, in the style of the built-in HTTP server.

12. github.com/emersion/go-message

✉️ A streaming Go library for the Internet Message Format and mail messages

AI-generatedA Go library for parsing and generating email messages.

13. github.com/mailhog/mhsendmail

sendmail for MailHog

AI-generatedSendmail replacement forwarding mail to SMTP server.

14. github.com/decke/smtprelay

Simple Golang SMTP relay/proxy server

AI-generatedSimple SMTP relay/proxy server for outgoing mail forwarding.

15. github.com/mxk/go-imap

IMAP4rev1 Client for Go

16. github.com/alash3al/smtp2http

A tiny software that receive a smtp request (email) and send it to the specified webhook as a http post request

AI-generatedSMTP server that forwards emails to a web endpoint.

17. github.com/hectane/hectane

Lightweight SMTP client written in Go

AI-generatedA Go package for sending emails with SMTP queue functionality.

18. github.com/mattbaird/gochimp

Golang based client API for Mailchimp, including Mandrill

19. github.com/emersion/go-msgauth

🔏 A Go library and tools for DKIM, DMARC and Authentication-Results

AI-generatedGo library for email authentication and DKIM signature verification.

20. github.com/alpkeskin/mosint

An automated e-mail OSINT tool

AI-generatedAutomated email open-source intelligence (OSINT) tool in Go.