use strict;
use warnings;

while (<DATA>){
    if (/^Relay access denied/ .. /Sender address rejected/){

          print "$2\n" if $_ =~ /(\d+)\s+(\S+)/;

    }
    
}
__DATA__
Relay access denied (total: 2)
           1   111.111.111.111
           1   222.222.222.222
           1   333.333.333.333
Sender address rejected: Access denied (total: 50)
           1   200.200.200.200
Relay access denied (total: 1)
           1   255.255.255.255
Sender address rejected: Access denied (total: 50)

##OUTPUT
111.111.111.111
222.222.222.222
333.333.333.333
255.255.255.255