File Coverage

lib/Sisimai/Reason/TooManyConn.pm

Criterion	Covered	Total	%
statement	23	23	100.0
branch	6	8	75.0
condition	5	6	83.3
subroutine	7	7	100.0
pod	2	4	50.0
total	43	48	89.5

package Sisimai::Reason::TooManyConn;
use feature ':5.10';
use strict;
use warnings;

sub text  { 'toomanyconn' }
sub description { 'SMTP connection rejected temporarily due to too many concurrency connections to the remote host' }
sub match {
    # Try to match that the given text and regular expressions
    # @param    [String] argv1  String to be matched with regular expressions
    # @return   [Integer]       0: Did not match
    #                           1: Matched
    # @since v4.1.26
    my $class = shift;
    my $argv1 = shift // return undef;

    state $index = [
        'all available ips are at maximum connection limit',    # SendGrid
        'connection rate limit exceeded',
        'exceeds per-domain connection limit for',
        'has exceeded the max emails per hour ',
        'throttling failure: daily message quota exceeded',
        'throttling failure: maximum sending rate exceeded',
        'too many connections',
        'too many connections from your host.', # Microsoft
        'too many concurrent smtp connections', # Microsoft
        'too many errors from your ip',         # Free.fr
        'too many recipients',                  # ntt docomo
        'too many smtp sessions for this host', # Sendmail(daemon.c)
        'trop de connexions, ',
        'we have already made numerous attempts to deliver this message',
    ];
    return 1 if grep { rindex($argv1, $_) > -1 } @$index;
    return 0;
}

sub true {
    # Blocked due to that connection rate limit exceeded
    # @param    [Sisimai::Data] argvs   Object to be detected the reason
    # @return   [Integer]               1: Too many connections(blocked)
    #                                   0: Not many connections
    # @since v4.1.26
    # @see http://www.ietf.org/rfc/rfc2822.txt
    my $class = shift;
    my $argvs = shift // return undef;

    return 1 if $argvs->reason eq 'toomanyconn';
    return 1 if (Sisimai::SMTP::Status->name($argvs->deliverystatus) || '') eq 'toomanyconn';
    return 1 if __PACKAGE__->match(lc $argvs->diagnosticcode);
    return 0;
}

1;
__END__