Sisimai::Reason::SystemError - Bounce reason is "systemerror" or not.

       azumakuniyuki

"text()"
       text() method returns the fixed string "systemerror".

           print Sisimai::Reason::SystemError->text;  # systemerror

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

           print Sisimai::Reason::SystemError->match('5.3.5 System config error'); # 1

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

       Copyright (C) 2014-2022,2024 azumakuniyuki, All rights reserved.

       "Sisimai::Reason::SystemError" checks the bounce reason is "systemerror" or not. This class is called
       only "Sisimai::Reason" class. This is the error that the email has bounced due to system error on the
       remote host such as LDAP connection failures or other internal system errors.

           <kijitora@example.net>:
           Unable to contact LDAP server. (#4.4.3)I'm not going to try again; this
           message has been in the queue too long.

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

perl v5.40.1                                       2025-04-12                  Sisimai::Reason::SystemError(3pm)

       Sisimai::Reason::SystemError - Bounce reason is "systemerror" or not.

           use Sisimai::Reason::SystemError;
           print Sisimai::Reason::SystemError->match('5.3.5 System config error'); # 1