Use blocklists at the initial point of setting up an email connection. You can reject emails immediately and significantly reduce the amount of processing required during content inspection.
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Expand your expertise with Spamhaus Know How, our free series aimed at filling in knowledge-gaps and helping you to maximize the benefits from DNS Blocklists and email filtering.
Not all blocklists are reactive. Our pro-active Policy Blocklist helps some customers drop up to 70% of emails at the initial connection, before the HELO stage.
At the initial connection and SMTP transaction don't only use IP blocklists. Domain and Hash blocklists will provide increased protection. Domains can be listed before they're seen in the wild.
Related Resources
Six advantages to running your own email server
Running your own email server is so 1995, right? Why would anyone go to all that trouble when you can outsource email to a third party and let them manage it? Let’s STOP a moment, and before we (and our precious data) all merrily rush off to third party providers, let’s consider some of the advantages of managing your own email infrastructure.
Top 10 tips (+1) for running your own mail server
There’s much to be said for running your own mail server: privacy, flexibility and being in control of your own destiny; these are all good things. On the flip side, there’s usually a bit more to it than just installing a software package and clicking the Go! button.
DNS Blocklist Basics
You’re running your own email infrastructure, or at least considering it, but how should email filtering be handled? What is your first line of defense against the spam and malicious emails that will bombard your mail server?
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