NAME

Sisimai::Reason::UserUnknown - Bounce reason is userunknown or not.

SYNOPSIS

use Sisimai::Reason::UserUnknown;
print Sisimai::Reason::UserUnknown->match('550 5.1.1 Unknown User');   # 1

DESCRIPTION

Sisimai::Reason::UserUnknown checks the bounce reason is userunknown or not. This class is called only Sisimai::Reason class.

This is the error that the local part (left hand side of @ sign) of the recipient's email address does not exist. In many case, the user has changed the internet service provider, or has quit company, or the local part is misspelled. Sisimai will set userunknown to the reason of the email bounce if the value of Status: field in the bounce email is 5.1.1, or the connection was refused at SMTP RCPT command, or the contents of Diagnostic-Code: field represents that it is unknown user.

<kijitora@example.co.jp>: host mx01.example.co.jp[192.0.2.8] said:
  550 5.1.1 Address rejected kijitora@example.co.jp (in reply to
  RCPT TO command)

CLASS METHODS

text()

text() method returns the fixed string userunknown.

print Sisimai::Reason::UserUnknown->text;  # userunknown

match(string)

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

print Sisimai::Reason::UserUnknown->match('550 5.1.1 Unknown User');   # 1

true(Sisimai::Fact)

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

AUTHOR

azumakuniyuki

COPYRIGHT

Copyright (C) 2014-2024 azumakuniyuki, All rights reserved.

LICENSE

This software is distributed under The BSD 2-Clause License.