We have been using this software at our company for approximately two years now. We have had excellent results from it thus far. This tool is very robust and provides a layered approach towards email security. We have it installed for our employees mobile devices as well.
FortiMail is a very flexible solution easy to install and use, any organization can use it whenever they require a virtual, physical, or cloud instance. Also, it is great to have an email archiver out of the box, you do not need any external product for it. The only thing that organizations need to consider before purchasing is service bundles - with the additional cost you can get Content Disarm and Reconstruction, URL click protection, Cloud Sandboxing, etc. (included in Enterprise Advanced Threat Protection Bundle).
Cisco TAC support is very good since they have engineers available 24 hours a day, 365 days a year. Important to mention that you must have the support of the solution enabled to be able to receive a response from TAC and that we can be taken care of. The only drawback may be that they will not be able to see settings of the email provider you use.
Any time I've had to use the support, it has been great! They always will recommend certain options, as well as explain what they do and why they are there. The support always gets back to me the same day, and are always pleasant to deal with. I never hesitate to call.
I would select Cisco for the Cloud Email Security solution because it has high availability. The integrations you have with solutions in the email cloud are very easy to integrate. Cisco Cloud Email Security is among the leaders in email protection solutions. It is important to take into account all the functionality that can be configured and in this way, we will be protected
I have used Barracuda Email Security in the past and FortiMail is just as effective. The interface is easy to use, and the configuration is straightforward in setting it up to work with Microsoft Exchange. Spam detection is effective, as well as malware/viruses and phishing attempts. Overall it is a great service.