go-emailvalidation

Purpose

Simple email validation package. Package supports either fast email validation via RFC compliant regex OR slower recursive DNS lookup. DNS validation checks for valid NS & MX records using the local DNS settings.

Supported versions

The current version is v3

Please import via go modules github.com/cameronnewman/go-emailvalidation/v3.

Usage

package main

import (
    "fmt"

    email "github.com/cameronnewman/go-emailvalidation/v3"
)

func main() {

    emailAddress := "[email protected]"

    // Run all checks, including validating the format along with DNS lookups which
    // may be slower depending on your DNS server performance
    err := email.Validate(emailAddress)
    if err != nil {
        fmt.Println(err)
    }

    // Checks the format - this function performs no network
    // operations and is very fast
    err = email.ValidateFormat(emailAddress)
    if err != nil {
        fmt.Println(err)
    }

    // Checks domain NS & MX, along with format validation
    err = email.ValidateDomainRecords(emailAddress)
    if err != nil {
        fmt.Println(err)
    }

    // Normalize email address for storage
    address := email.Normalize(emailAddress)
    fmt.Println(address)
}

Issues

• None

License

MIT Licensed