3SPKUVLJRAQCVLIUJIA46RTVR5HYJEC6RLKYPKHY7PJVW4KHIYUAC
5WNGKHLZF5UGSQMFFGGDKN4NHNN4KAGXT7BTT2OR3ELGUUKM5CPQC
5EQYVRWECBDJORGI5DRIOUEJXSXMRCQNT2562BM4Z4U52LT7JUHAC
return $self->{config}->{email_notification} == 1;
return defined($self->{config}->{email_notification}) && $self->{config}->{email_notification} == 1;