The Net::DNS module wraps much of that for you - no need to rewrite all of it. After the Net::DNS docs: 

use Net::DNS;
my @mx = mx($domain);

[download]
, minimally, or 
use Net::DNS;
my $resolvewr = Net::DNS::Resolver->new();
my @mx = mx $resolver, $domain;

[download]
which allows for error handling and other tricks.

After Compline,
Zaxo

In reply to Re: MX Record Lookups by Zaxo
in thread MX Record Lookups by Gerard

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