use Phant\EmailValidityChecker\EmailValidityChecker; use Phant\EmailValidityChecker\Exception\{ EmailFormatIsNotValid, EmailDomainFormatIsNotValid, EmailDomainIsTrashMailBoxService, EmailDomainWithoutMxServer, }; $email = 'john.doe@fake-box.com'; try { $EmailValidityChecker = new EmailValidityChecker($email); } catch (EmailFormatIsNotValid | EmailDomainFormatIsNotValid | EmailDomainIsTrashMailBoxService | EmailDomainWithoutMxServer $e) { // E-mail domain is not valid }