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We deployed Avanan primarily for Office 365 as Microsoft's filtering, even with their Advanced Thread Protection, was allowing far too many malicious emails through while blocking many legitimate emails. After Avanan deployment we get near zero malicious emails delivered and our help desk is no longer getting tickets to restore quarantined emails. One cool story in our Avanan trial was when a client had their email compromised and our users were being sent phishing emails. Avanan blocked the phishing emails and then after the client regained control of their mailbox Avanan allowed the follow up emails from the client warning us to not open the previous emails. I've had similar instances occur with other email security solutions in place and none has ever successfully blocked it like that.
We also have two Google Workspace environments protected by Avanan. It's great that we now have visibility of our environments in one solution. You can't have both Google Workspace accounts setup in one Avanan tenant but Avanan set us up with an MSP portal so each Google Workspace account is in its own Avanan tenant and alerts and stats roll up to the MSP portal for easy visibility. Review collected by and hosted on G2.com.
Avanan is not a traditional email gateway solution and augments Microsoft's filtering. You still need to do some tuning in Microsoft policy settings to avoid items being blocked by Microsoft after Avanan filtering. So there are sometimes cases where you have to check two places to find out what happened with an email.
Avanan also has some UI glitches in their latest UI release. The Mail Explorer will sometimes show results but as you tweak the search or go between pages the Mail Explorer results will sometimes stop showing. Usually refreshing the page will clear this up but it's a bit annoying. Review collected by and hosted on G2.com.
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