What are the best settings for DNS Blacklisting?

[tdehan]

Curious what the best settings are for DNS Blacklisting under SMTP Properties. I have the following configuration and as of recent getting a buttload of spam daily.



Is there a better configuration? Are there different blacklists that are better to add?

Thanks

[tdehan]

Really?

[Brett Rowbotham]

I don't use the URL blacklisting, only DNS. I had to get rid of Barracuda because it was blocking legitimate (for us) mail sources. I use SpamCop and SpamhausSBL-XBL.

We get quite good results from those two. Stats for this month are SpamhausSBL-XBL blocks at 12,886 and Spamcop blocks at 17,964.

Cheers,
Brett