checkemail

README

Email Validator

There is golang package to Validate email address syntax, check email domain, check smtp and that mail user exists.

Basic usage example

Look example at examples/validate_email folder

cd examples/validate_email
go run . -e myemail@example.com

Licence

BSD

Documentation

Index

• Variables
• func ValidateEmail(s string) error
• func ValidateHost(email string) (err error)
• func ValidateMX(email string) error
• func ValidateUser(serverHostName, serverMailAddress, email string) (err error)

Variables

var (
	ErrInvalidFormat  = errors.New("invalid format")
	ErrDomainRequired = errors.New("domain is required")
)

Functions

func ValidateEmail

func ValidateEmail(s string) error

ValidateEmail validates email address regex

func ValidateHost

func ValidateHost(email string) (err error)

ValidateHost validate mail host. This function checks emails hosts mx record and try connect to smtp server with timeout.

func ValidateMX

func ValidateMX(email string) error

ValidateMX validate if MX record exists for a domain

func ValidateUser

func ValidateUser(serverHostName, serverMailAddress, email string) (err error)

ValidateUser validate mail host and user. If host is valid, requires valid SMTP [1] serverHostName and serverMailAddress to reverse validation for prevent SPAN and BOTS.

[1] https://mxtoolbox.com/SuperTool.aspx