An ESMTP client and server library written in Go.
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.
MIT
[RFC 5321]: https://tools.ietf.org/html/rfc5321 [AUTH]: https://tools.ietf.org/html/rfc4954 [PIPELINING]: https://tools.ietf.org/html/rfc2920 [LMTP]: https://tools.ietf.org/html/rfc2033