On the surface all the stuff you would expect is here, all the typical mail filtering technology just works. But the real power is when you start writing your own SIEVE rules to do things never intended by the developers. Want to only greylist conditionally? Great! Want to return customized SMTP rejection messages for certain conditions? You can! Want to do simple content filtering without learning SIEVE? The UI has all the basics covered too. The deep integration with MDaemon is a perk for me, but it works with Exchange and other platforms just as well, even including SMTP call-forwards.

There is a learning curve, and although all the configuration is browser-based it isn’t especially mobile friendly.

Overall the product has met and exceeded my expectations. It is a formidable spam filter and keeps viruses out. Once the fine tuning was done it has "just worked" which is all you can ask for.

We moved from Exchange Online Protection to Security Gateway after trialing several alternatives (both on-prem and cloud based). Security Gateway was the perfect sweet spot. Spam capabilities are far superior to EOP. Installation was straightforward and setup and configuration were also easy. For the price you get all the expected features and a lot of extra goodies too. The logging is top notch, very easy to see what happened to an e-mail and why.

I wish the Bayesian filter had a way to incorporate updates from either MDaemon or a third party for downloading known good HAM/SPAM. You can train I prefer the way GFI MailEssentials does Bayesian training and updates, much more useful. I wish it had an Outlook plugin that would allow uses to automatically whitelist/blacklist an email from right in Outlook like Mail Essentials has. I also wish there were an option for additional antivirus engines to be purchased.

It is a very easy system to use, easy to implement, and it helps a lot because it has several languages for which I am grateful that my native language is Spanish.

We implemented our own Exchange server, and we had the need to have an antispam that would help us to be free to monitor it and that the same user with a single click could release his email, and this software was what we needed

maybe the interface (its appearance) and the time to send reports to the user, because they have to wait every hour to see their blocked email

With Security Gateway in place I get a little better sleep at night knowing my Exchange Server and entire network is better protected from the nasty stuff out there. In recent months since the COVID pandemic started, spam and scams have spread faster than Coronavirus. As far as the MDaemon team behind the product, I can't say enough good about them. Support if every needed is TOP NOTCH, and just recently our license was due for renewal, we mailed our renewal payment in a week or two before the due date, but because of the delays in mail delivery it was stuck in the postal system for nearly 4 weeks. MDaemon without us even asking immediately issued us a 30 day temporary license key. The payment arrived a few days after that and they emailed me to let us know. Thank you MDaemon for the personal attention given to your customers, you make us feel like family !!

Out of the box, it's probably one of the easiest pieces of software to implement. Recently I moved our installation to a new server, what can be a nightmare with other software packages was a no brainier. I simply installed a new copy of the software on a new server, ran the Security Gateway system backup, imported it to the new installation, and BOOM just like that I was in business again. Over the years I've tweaked this or that setting to make an already great piece of work exceptional.

Not any cons worth mention. Would like to see an Outlook add-on button that would allow me to add any messages that make it thru (which isn't much) right to the blacklist or to spam learning.

Spam/Virus attacks have been a huge burden with every business, especially in the real estate law business. SecurityGaetway has been able to help remove that burden from my day to day with it's spam/virus protection. And now that they are offering a hosted solution, it checks off all the boxes.

The best part about the software is ease of installation and maintaining such a sophisticated product. I had an appliance before moving to SecurityGateway and setup was night and day compared to the appliance. Deployed SecurityGateway over a weekend and had no issues out of the box. Feature wise it beat the old application I had.

I really don't have any cons about the software. If there is something that isn't working for you, their support team is top notch.