NAME

Sisimai::Reason::HostUnknown - Bounce reason is "hostunknown" or not.

SYNOPSIS

    use Sisimai::Reason::HostUnknown;
    print Sisimai::Reason::HostUnknown->match('550 5.2.1 Host Unknown');   # 1

DESCRIPTION

Sisimai::Reason::HostUnknown checks the bounce reason is "hostunknown" or not. This class is called only Sisimai::Reason class.

This is the error that a domain part (Right hand side of @ sign) of a recipient's email address does not exist. In many case, the domain part is misspelled, or the domain name has been expired. Sisimai will set "hostunknown" to the reason of email bounce if the value of Status: field in a bounce mail is 5.1.2.

    Your message to the following recipients cannot be delivered:

    <kijitora@example.cat>:
    <<< No such domain.

CLASS METHODS

"text()"

"text()" returns string: "hostunknown".

    print Sisimai::Reason::HostUnknown->text;  # hostunknown

"match(string)"

"match()" returns 1 if the argument matched with patterns defined in this class.

    print Sisimai::Reason::HostUnknown->match('550 5.2.1 Host Unknown');   # 1

"true(Sisimai::Data)"

"true()" returns 1 if the bounce reason is "hostunknown". The argument must be Sisimai::Data object and this method is called only from Sisimai::Reason class.