CloudFilter Reviews & Product Details

CloudFilter is Mailprotector's secure email gateway for MSPs managing Microsoft 365, Google Workspace, on-premises servers, hosted environments, or a mix. It delivers inbound and outbound protection anywhere the MSP controls the MX record, giving technicians one system for a varied client base. CloudFilter puts powerful gateway controls into a mobile-first console built for how MSPs actually manage clients. Policies can be set across the entire base or narrowed to an account, domain, group, or individual user. Changes cascade downward, so technicians can establish a common baseline and make exceptions wherever a client needs something different. Filtering scores and thresholds are also tunable, letting each client draw its own line between what gets delivered, held, or stopped. Key capabilities include: Pre-delivery threat detection that combines machine learning, heuristics, reputation checks, and multiple malware engines into a composite risk score for each message. Quarantined messages stay outside the mailbox rather than inside a Junk or Spam folder. Users get a risk-flagged preview and one-click release or block options inside boundaries set by the MSP. Automated impersonation detection covers attacks such as executive fraud and lookalike senders. User Sync draws on Microsoft 365, Google Workspace, or LDAP directory data to keep the organizational context behind that detection current. Complete DMARC enforcement helps prevent phishing and spoofing attempts with customizable result types to match policy requirements. A full audit trail records administrative changes, while a message delivery timeline helps technicians trace where mail was delayed or interrupted. Includes core outbound filtering and advanced data protection controls. CloudFilter gives MSPs one gateway for every environment, a common baseline across clients, and precise control wherever a client needs something different.

Seller

Mailprotector

Discussions

CloudFilter Community

Overview by

Kate Schlarf

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Icaro P.

Technical Support Engineer

Enterprise (> 1000 emp.)

9/29/2026

"Incredible people behind an awesome product!"

4.5/5

What do you like best about CloudFilter?

First and foremost, the MailProtector team is one of the best out there. Their support team is incredible! They are very friendly, responsive, and knowledgeable. From onboarding to continued support, any time we have questions they are prompt to respond and assist with our needs. Top to bottom one of the best vendors to work with!

The dashboard is also very easy to use for both end users and admins, and the product works incredibly well overall. All of our customers have been extremely satisfied after switching from other filtering systems to MailProtector. The difference in spam filtering capability is truly night and day.

API integration allows you to connect their products to any of your automation tools including Rewst. Review collected by and hosted on G2.com.

What do you dislike about CloudFilter?

Filtering categories could be confusing for admins coming from a different system.

Lack of Graph API tenant control (this is fixed with Shield, another great product) Review collected by and hosted on G2.com.

What problems is CloudFilter solving and how is that benefiting you?

Email security is critical in today’s business world. We need to protect users from being compromised while still keeping their workflows streamlined and efficient.

We’re able to do that with MailProtector. It helps users focus on the emails that matter, with the confidence that email threats are being handled in the background. This has benefited us tremendously, and it’s saving time and money because our resources don’t need to spend nearly as much effort blocking spam emails. Review collected by and hosted on G2.com.

JH

Jonathan H.

Small-Business (50 or fewer emp.)

8/31/2026

"Reliable Email Protection with Easy Setup"

4.5/5

What do you like best about CloudFilter?

I use CloudFilter for protecting against spam, viruses, and ensuring mail hygiene for both my own business and my customers' businesses. I appreciate that it's easy to use and very reliable. I never have to worry about emails getting lost, and it provides a configurable outline for users about quarantined emails, which they understand easily. The administrative interface is straightforward, and it syncs well with Active Directory. Setting it up is simple, just a change in the MX record in DNS, and I'm protected. It's been through tough conditions like hurricanes and ice storms without any downtime. The quarantine email feature is especially user-friendly, and I love how once it's set up, I don't need to think about it much. That's what's most important to me. Review collected by and hosted on G2.com.

What do you dislike about CloudFilter?

Sometimes it's a little confusing how to set up the journaling for keeping a copy of all emails for regulatory purposes. While I got it working, it wasn't as intuitive as the rest of the product and felt kind of bolted on. It would also be nice if the Active Directory sync were a bit more aware so I wouldn't have to filter out service mailboxes and other things using regular expressions. But all in all, these are minor complaints. Review collected by and hosted on G2.com.

AO

Anthony O.

IT Support Technician / Security Technician

Small-Business (50 or fewer emp.)

9/18/2026

"Clean Interface, Smooth Performance, and Excellent Customer Service"

5/5

What do you like best about CloudFilter?

I love the customer service, and the interface is clean, only changing when it needs to. Performance is consistently smooth and fast, and it’s priced really well. Review collected by and hosted on G2.com.

What do you dislike about CloudFilter?

There isn't much to dislike about CloudFilter, possible the never ending evolution of spam emails. But that can't be helped except with CloudFilter. Review collected by and hosted on G2.com.

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Verified User

Small-Business (50 or fewer emp.)

8/19/2026

"Effective Email Filtering with Easy Setup"

5/5

What do you like best about CloudFilter?

I really like how CloudFilter keeps the Inbox free from Spam, making it easier to manage emails. It also does a great job of blocking fake calendar invites and spoofed/phishing emails, which has been a huge help for us. We have integrated it with Bracket; their Secure Email System is built into it as well. The initial setup was very easy; we synchronized with Office 365 and changed the MX record. CloudFilter automatically sends welcome messages, and we can send directions with a single click. These features make secure emails very easy and efficient. Review collected by and hosted on G2.com.

What do you dislike about CloudFilter?

In the User portal, you're not able to see every single email that has come in. You're only able to see what has been caught. A request for sure we're able to block messages from there. Right now, we don't have the ability to just push a button to block an address. We have to go in and copy the address and then add it to the block filter. So an easier way to block messages that have come into the mailbox would be appreciated. Review collected by and hosted on G2.com.