SonicWALL E-mail Security 300 (01SSC6601) Firewall

Pros: cheaper than a Barracuda

Cons: not reliable, TERRIBLE tech support

The Bottom Line: The ES300 is a less expensive competitor to the Barracuda that offers a lot. Where it falls short is on reliability and support.

Review: Spam is a fact of life in today's world of email. I typically recommend Barracuda spam appliances to my clients, because they do a great job at filtering spam, and I've found them to be reliable. However, an antispam appliance is an expensive ...