# get list of MX servers for a domains
def domain_mx_servers(domain)
Resolv::DNS.open do |dns|
- dns.getresources(domain, Resolv::DNS::Resource::IN::MX).collect(&:exchange).collect(&:to_s)
+ dns.getresources(domain, Resolv::DNS::Resource::IN::MX).collect { |mx| mx.exchange.to_s }
end
end
end