Golang | sending email

[atc0005]

Ranked by "last activity" (as of 2020-07-09):

• https://golang.org/pkg/net/smtp/

  • https://golang.org/src/net/smtp/example_test.go
  • last activity: Frozen;

  • "The smtp package is frozen and is not accepting new features."

• https://github.com/go-gomail/gomail

  • "original" alternative to the stdlib package
  • see also go-gomail/gomail#142, go-gomail/gomail#108
  • last activity: 2016

• https://github.com/go-mail/mail

  • fork of go-gomail/gomail
  • last activity: 2018

• https://github.com/xhit/go-simple-mail

  • Seems to offer many perks such as timeouts vs stdlib
  • See also go-gomail/gomail#142, go-gomail/gomail#108
  • last activity: 2020-05

• https://github.com/emersion/go-smtp

  • alternative to stdlib pkg
  • I already use one of their other packages with good results
  • last activity: 2020-07

[atc0005]

https://github.com/emersion/go-smtp/commit/2f00eafcaf68a4520bbb481360d2237fd3f9edba

The Go standard library provides a SMTP client implementation in net/smtp. However net/smtp is frozen: it's not getting any new features. go-smtp provides a server implementation and a number of client improvements.

[atc0005]

See the example on https://github.com/tangingw/go_smtp/blob/3f565e36c589fba5c3389422bac69a47a9d1366b/send_mail.go#L52-L85 for an example of encoding the body before it is sent.

I would quote here, but the repo doesn't specify a license.

[atc0005]

Some tutorials:

• https://golang.org/pkg/net/smtp/#pkg-overview
  • includes an unauthenticated SMTP example which I'll need to use for basic relay use
• https://blog.mailtrap.io/golang-send-email/
• https://medium.com/glottery/sending-emails-with-go-golang-and-gmail-39bc20423cf0
• https://ednsquare.com/story/sending-email-from-gmail-using-golang------nDCo9Z
• https://gist.github.com/jpillora/cb46d183eca0710d909a
• https://github.com/tangingw/go_smtp
  • more of an example implementation, but easy to read

[atc0005]

https://github.com/jordan-wright/email

Found that one by way of the mailtrap.io tutorial, haven't dug into it yet.

[Neustradamus]

@atc0005: There is:

• https://github.com/wneessen/go-mail from @wneessen