Mail __/ email sender written in Go

This simple package supports rich email messages, unix sendmail command and more.

The mail package provides an amazing API to work with.

Installation

The only requirement is the Go Programming Language, at least version 1.9.

$ go get -u -v github.com/kataras/mail

Stable release installation by go get gopkg.in/kataras/mail.v0

Getting Started

• New returns a new, e-mail sender service
• Mail#Send sends a (rich) email message
• Mail#Subject("...") returns a Builder for the mail message which ends up with Send() error, SendUNIX() error
• SendUNIX make use of the sendmail program of *nix OS, no Mail sender is needed

// New returns a new *Mail, which contains the `Send(...) error`
// and `Subject(...) *Builder` functions.
New(c Credentials) *Mail

Example

$ cat send-mail.go

package main

import "github.com/kataras/mail"

func main() {
    c := mail.Credentials{
        Addr:     "smtp.sendgrid.net:587",
        Username: "apikey",
        Password: "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",
    }

    message, err := mail.New(c)
    if err != nil {
        panic(err)
    }

    message.
        Subject("Subject").
        BodyString("Body").
        To("[email protected]", "[email protected]").
        From("FromName", "[email protected]").
        Send()

    // Tip #1
    //
    // Alternative ways to set Body inside a Builder:
    // Body([]byte)
    // BodyReader(io.Reader)
    // BodyReadCloser(io.ReadCloser)

    // Tip #2
    //
    // If you want to re-use a Builder(= `message.Subject(...)`'s result) after the `Send`
    // then you have to call the Builder's `MarkSingleton()` before its `Send` execution.

    // Small:
    //
    // [ init time, once after the `mail.New(...)` ]
    // message.DefaultFrom = &mail.Address{"FromName", "[email protected]"}
    // [[ run time, many ]]
    // message.Subject("Subject").BodyString("Body").To("[email protected]").Send()
}

For the stable release use import gopkg.in/kataras/mail.v0 instead

$ go run send-mail.go

More examples

• Simple
• Using the Builder
• Using the Unix sendmail program

FAQ

Explore these questions or navigate to the community chat.

Versioning

Current: v0.0.1

Read more about Semantic Versioning 2.0.0

• http://semver.org/
• https://en.wikipedia.org/wiki/Software_versioning
• https://wiki.debian.org/UpstreamGuide#Releases_and_Versions

People

The author of the mail is @kataras.

Contributing

If you are interested in contributing to the mail project, please make a PR.

TODO

• Add a simple CLI tool for sending emails
• Read the specification for the email attachment and implement that.

License

This project is licensed under the MIT License. License file can be found here.