go-dkim

DKIM package for golang

Programming language: Go

License: MIT License

Tags: Email    

README

go-dkim

DKIM package for Golang

Getting started

Install

    go get github.com/toorop/go-dkim

Warning: you need to use Go 1.4.2-master or 1.4.3 (when it will be available) see https://github.com/golang/go/issues/10482 fro more info.

Sign email

import (
    dkim "github.com/toorop/go-dkim"
)

func main(){
    // email is the email to sign (byte slice)
    // privateKey the private key (pem encoded, byte slice )    
    options := dkim.NewSigOptions()
    options.PrivateKey = privateKey
    options.Domain = "mydomain.tld"
    options.Selector = "myselector"
    options.SignatureExpireIn = 3600
    options.BodyLength = 50
    options.Headers = []string{"from", "date", "mime-version", "received", "received"}
    options.AddSignatureTimestamp = true
    options.Canonicalization = "relaxed/relaxed"
    err := dkim.Sign(&email, options)
    // handle err..

    // And... that's it, 'email' is signed ! Amazing© !!!
}

Verify

import (
    dkim "github.com/toorop/go-dkim"
)

func main(){
    // email is the email to verify (byte slice)
    status, err := Verify(&email)
    // handle status, err (see godoc for status)
}

Todo

• [ ] handle z tag (copied header fields used for diagnostic use)