Mailprotector

Overview

Mailprotector is a suite of email security products built specifically for managed service providers (MSPs). It suits providers managing email for multiple organizations, especially Microsoft 365 customers. Its range covers filtering, encryption and archiving, but Shield’s current Microsoft 365 focus narrows its fit for providers centered on Google Workspace.

Key features

Shield combines a secure email gateway with a patented API integration for Microsoft 365. That focused setup is a reasonable fit for MSPs serving Microsoft 365 environments, but it does not yet extend to Google Workspace. CloudFilter is the broader filtering option: it works where the customer controls the MX record, including Microsoft 365, Google Workspace, on-premises servers, hosted environments and POP/IMAP. That flexibility makes CloudFilter more suitable when an MSP supports mixed or non-cloud email systems.

Bracket encrypts a message when its subject contains square brackets, without asking either party to install an app or plugin or use a password. It uses AES-256 encryption; its one-time sign-in links expire after 15 minutes and are invalidated if opened on another device. Avoiding software installs reduces friction for recipients, while the short-lived, device-bound link can be inconvenient if someone changes devices before reading the message.

SecureStore captures messages going forward, with a seven-year default retention period that can be configured up or down. It is therefore a fit for organizations planning to archive future mail, not a way to capture messages sent before setup. Mailprotector states that it holds the HIPAA Seal of Compliance from Compliancy Group and is SOC 2 Type 2 certified.

ConnectWise, Autotask and Gradient integrations synchronize licensing or service counts and support billing workflows. Mailprotector provides these integrations free of charge, which gives MSPs a useful operational connection without an added integration fee. Support is available Monday through Friday, 9:00 AM to 8:00 PM ET, excluding federal holidays.

Pricing

Mailprotector is a paid suite, with product pricing available from an account manager rather than published plan rates. That means MSPs should request a quote to compare products against their customer mix and deployment needs; no seat-based price or quota can be assessed up front.

Radar is free at no cost and provides a free email security check. It is a limited no-cost option, not a substitute for the paid products in Mailprotector’s security and archiving range. The ConnectWise, Autotask and Gradient integrations are free of charge, but product pricing remains custom.

Platforms

Mailprotector lists API and web platforms, and its deployment model is gateway. Microsoft 365 support is available. Google Workspace support is available through CloudFilter, while Shield currently supports Microsoft 365 only.

Who it's for

Mailprotector is designed for MSPs rather than organizations buying email protection as a standalone business tool. It is most compelling for providers who want filtering options across varied email environments, encryption without recipient installs, or forward-looking archiving, and who can work with custom product pricing. MSPs that need Shield for Google Workspace should look elsewhere for now.

Pros and cons

• Pros: CloudFilter covers a wide range of MX-controlled environments, including POP/IMAP and on-premises systems, giving MSPs options beyond Microsoft 365.
• Pros: Bracket encrypts by subject trigger without app, plugin or password requirements for either party.
• Pros: SecureStore offers a configurable seven-year default retention period for mail captured after setup.
• Pros: ConnectWise, Autotask and Gradient integrations are free, supporting MSP licensing and billing workflows.
• Cons: Shield currently supports Microsoft 365 only, limiting its use for MSPs standardized on Google Workspace.
• Cons: Product pricing is custom, so buyers cannot compare the suite's costs from published rates.
• Cons: SecureStore captures mail on a go-forward basis, so it does not cover messages from before setup.
• Cons: Bracket links expire after 15 minutes and cannot be opened from another device, which can interrupt recipient access.

Alternatives

For a broader category comparison, see Email Anti-Spam Software and Email Security Gateways.

Libraesva Email Security is worth considering if self-hosted deployment or a free trial matters; it is paid and requests approximate mailbox count and deployment details for pricing. SpamTitan Gateway may suit MSPs prioritizing unlimited users and multiple-domain support, with pricing by quote and a free trial. Mailinblack Protect is another paid option, with API, self-hosted and web platforms; its Protect Advanced plan includes multi-engine protection with advanced AI, inbound and outbound protection, integrated controls, individual and group management, and SIEM enrichment.

Cleanmail is a paid alternative with self-hosted and web platforms and a free trial. MailWasher is a better fit for an individual seeking a freemium option across Android, iOS and Windows: MailWasher Free costs nothing for one email account and has no support, while Pro costs $49.95 a year, billed thereafter at $34.95 per year.

Forcepoint Email Security Cloud is a paid web-based alternative. MX Guarddog may suit buyers who want per-address pricing: it charges $0.25 a month per email address, with no charge for user or domain aliases and no limit on addresses or messages. SpamHero Business Email Security is another paid option with a free trial; its Lite plan starts at $5 a month per domain at the introductory rate with annual prepayment, covering 25,000 inbound emails.

Verdict

Mailprotector is a strong candidate for MSPs that need a flexible email security suite and value integrations with ConnectWise, Autotask or Gradient. Its practical strengths are CloudFilter’s broad environment support, low-friction encrypted delivery through Bracket, and configurable future archiving through SecureStore. Choose another provider if Shield must protect Google Workspace or if published product pricing is essential to your buying decision.