Written by Mike

Postfix mailserver using Google DNS vs Spamhaus

Here’s something to be aware of if you’re running a Postfix (or possibly any mailserver), use Spamhaus, and are considering or have switched to Google DNS:

1. Spamhaus has banned Google Public DNS resolver queries. I didn’t know this until today. If Postfix is using Google Public DNS resolvers, rbl queries to zen.spamhaus.org fail but Postfix (Debian Lenny 2.5.5-1.1) logs NOTHING about it. Not the query attempt, not the failure, zilch, nut’n.

For more info, read the thread at:

via SOLVED: rbl check being skipped – Postfix logs no error on NXDOMAIN, do.

Leave a Reply

Fill in your details below or click an icon to log in:

Gravatar
WordPress.com Logo

You are commenting using your WordPress.com account. ( Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. ( Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. ( Log Out /  Change )

Cancel

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.