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RX5IIZMT7AKE3SME2TON6HWE7BB2GNYV3KOKL3GLH4J7J2GEOO5AC
my $sender = $config->{'notification_sender'} // (($ENV{'USER'} // "hydra") . "@" . $url);
my $sender = $config->{'notification_sender'} // (($ENV{'USER'} // "hydra") . "@" . hostname_long);