Apache SpamAssassin Free plan 9.1 Visit MailWasher
firetrust.com
What it is
MailWasher previews email on the mail server so users can remove unwanted messages before downloading them to a computer. Its filtering tools include Friends List, Blacklist, RBLs, custom and learning filters, a profanity list, and spam ratings. The free edition works with one email account and has no support; Pro supports unlimited accounts and POP3 and IMAP. Firetrust lists Gmail, Outlook.com, Yahoo, AOL, and Hotmail, along with programs such as Outlook, eM Client, and Thunderbird. The maker says email content stays on the PC and only the license key is sent to its servers. It also says MailWasher uses OAuth for services such as Gmail and Outlook.com, or app passwords, rather than asking users to enter their actual email passwords in the app. Mobile apps are available for iPhone, iPad, and Android. Pro has a 30-day trial with full functionality. Listed purchase options include $49.95 a year for one year, $77.21 a year for two years, $99.90 a year for three years, or 149.95 USD once for a lifetime license; annual plans thereafter cost $34.95 a year.
Spec sheet
- What it does
- MailWasher previews messages on the mail server and lets users delete unwanted mail before their normal email program downloads it.Read 14 Oct 2026 · firetrust.com
- Purpose
- MailWasher previews email on the mail server so users can remove unwanted messages before downloading them to their computer.Read 2 Oct 2026 · firetrust.com
- Trial
- The Pro trial offers 30 days free with full functionality.Read 2 Oct 2026 · firetrust.com
- Mobile apps
- MailWasher Mobile is available for iPhone and iPad through the Apple App Store and for Android through Google Play.Read 2 Oct 2026 · firetrust.com
- Support
- The paid Pro license includes customer support, and Firetrust provides support by email.Read 2 Oct 2026 · firetrust.com
- Headquarters
- Christchurch, New ZealandRead 28 Sep 2026 · firetrust.com
- Account limit
- MailWasher Free works with one email account, while Pro supports unlimited email accounts.Read 2 Oct 2026 · firetrust.com
- API and SDKs
- The official documentation describes account protocols and an internal mobile API access fix, but it does not present a public developer API or SDK.Read 14 Oct 2026 · apps.apple.com
- Company history
- Firetrust was founded by Nick Bolton in 2000 and released MailWasher in 2001.Read 14 Oct 2026 · firetrust.com
- Company location
- Firetrust Limited is headquartered in Christchurch, New Zealand.Read 14 Oct 2026 · firetrust.com
- Documentation and support
- Documentation includes an in-product help file, tutorials, an online forum and direct email support.Read 14 Oct 2026 · firetrust.com
- Email protocols
- MailWasher Pro supports POP3 and IMAP accounts.Read 2 Oct 2026 · firetrust.com
- Email services and apps
- The maker lists Gmail, Outlook.com, Yahoo, AOL and Hotmail, and says MailWasher works with email programs including Outlook, eM Client and Thunderbird.Read 2 Oct 2026 · firetrust.com
- Enterprise deployment limit
- Enterprise Server is intended for server deployments and is not supported on Windows XP through Windows 11.Read 14 Oct 2026 · firetrust.com
- Enterprise server
- MailWasher Enterprise Server provides real-time blocking, Bayesian learning, greylisting and quarantine or pass-through handling.Read 14 Oct 2026 · firetrust.com
- Filtering
- Filtering tools include Friends List, Blacklist, RBLs, custom filters, learning filters, profanity list and spam ratings.Read 2 Oct 2026 · firetrust.com
- Implementation
- The interface uses .NET 4 and Windows Presentation Foundation while the processing engine is written in C++.Read 14 Oct 2026 · firetrust.com
- International sales
- Firetrust says 99% of its software is exported, with the United States, United Kingdom and Australia as main markets.Read 14 Oct 2026 · firetrust.com
- Latest release
- MailWasher Pro 8.5.1 was released in August 2026 with crash, category, Gmail OAuth, filter and wash-mail fixes.Read 14 Oct 2026 · firetrust.com
- Limit: Android login errors
- A Google Play reviewer reports repeated password and Gmail configuration errors despite checking the credentials.Read 14 Oct 2026 · play.google.com
- Limit: crashes
- Multiple G2 reviews report shutdowns or crashes and difficulty diagnosing some errors.Read 14 Oct 2026 · g2.com
- Limit: dated interface
- A G2 reviewer requests an interface refresh.Read 14 Oct 2026 · g2.com
- Limit: expensive Pro
- A G2 reviewer describes the Pro edition as expensive and says Windows has more integration capability than other operating systems.Read 14 Oct 2026 · g2.com
- Limit: filtering misses
- G2 reviewers report that some promotional or unwanted messages still pass through the filters.Read 14 Oct 2026 · g2.com
- Limit: mobile folders
- An Apple reviewer says the mobile app does not import desktop filters and does not handle subfolders.Read 14 Oct 2026 · apps.apple.com
- Limit: mobile refresh bug
- An Apple reviewer reports that pending messages sometimes require repeated refresh actions to appear.Read 14 Oct 2026 · apps.apple.com
- Limit: provider compatibility
- A Capterra reviewer reports that MailWasher stopped working with GoDaddy after its mail service moved to Microsoft Exchange.Read 14 Oct 2026 · capterra.com
- Local privacy
- Firetrust says email content stays on the user’s PC and only the license key is transmitted to its servers.Read 14 Oct 2026 · firetrust.com
- Login security
- The maker says MailWasher uses OAuth for services such as Gmail and Outlook.com, or app passwords, so users do not have to enter their actual email passwords in MailWasher.Read 2 Oct 2026 · firetrust.com
- Mobile synchronization
- The mobile app can synchronize email accounts, friends lists and blacklists with MailWasher Pro.Read 14 Oct 2026 · firetrust.com
- OAuth and app passwords
- The product supports modern OAuth logins and app passwords for services such as Gmail and Outlook.com.Read 14 Oct 2026 · firetrust.com
- Plain-text safety view
- Emails are shown as plain text by default, exposing real link destinations while disabling attachments in the preview.Read 14 Oct 2026 · firetrust.com
- Praise: Bayesian training
- A Capterra reviewer says Bayesian training is straightforward, automatic and easy to reset.Read 14 Oct 2026 · getapp.com
- Praise: ease and filtering
- G2 reviewers repeatedly praise simple setup, flexible filtering, effective spam reduction and responsive support.Read 14 Oct 2026 · g2.com
- Praise: server-level control
- Capterra reviewers praise blocking spam at the mail-server level, automatic learning and configurable good and bad filters.Read 14 Oct 2026 · capterra.com
- Praise: time savings
- A Trustpilot reviewer says MailWasher saves time by removing spam before it reaches Outlook.Read 14 Oct 2026 · trustpilot.com
- Preview and deletion
- Users can preview email and delete unwanted messages before downloading them to their computer.Read 2 Oct 2026 · firetrust.com
- Rating on Apple App Store
- 2.0 out of 5 from 82 ratings.Read 14 Oct 2026 · apps.apple.com
- Rating on Capterra
- 4.2 out of 5 from 25 reviews.Read 14 Oct 2026 · capterra.com
- Rating on G2
- 4.0 out of 5 from 18 reviews.Read 14 Oct 2026 · g2.com
- Rating on GetApp
- 4.2 out of 5 from 25 reviews.Read 14 Oct 2026 · getapp.com
- Rating on Google Play
- 1.6 out of 5 from 166 reviews.Read 14 Oct 2026 · play.google.com
- Refund policy
- Firetrust offers a 30-day money-back guarantee for purchases.Read 2 Oct 2026 · firetrust.com
- Security and privacy
- Firetrust says email content stays on the PC and nothing is transmitted to its servers except the license key.Read 2 Oct 2026 · firetrust.com
- Security policy
- Firetrust states that its products contain no adware or spyware and that stored Firetrust account information is encrypted.Read 14 Oct 2026 · firetrust.com
- Self-hosting
- Enterprise Server is sold as software installed on customer mail servers, with Linux and Windows installation documentation available.Read 14 Oct 2026 · firetrust.com
- Server-side preview
- Users can inspect message text, links, headers and attachments before downloading mail to the computer.Read 14 Oct 2026 · firetrust.com
- Spam filtering
- MailWasher uses weighted friends lists, blacklists, RBLs, custom filters and learning filters to classify messages.Read 14 Oct 2026 · firetrust.com
- Spam reporting
- The filtering tools can report spam to an ISP or services such as SpamCop.Read 14 Oct 2026 · firetrust.com
- Supported clients
- Official examples of compatible clients include Outlook, Thunderbird, eM Client and webmail.Read 14 Oct 2026 · firetrust.com
- System requirements
- MailWasher Pro supports 32-bit and 64-bit Windows XP, Vista, 7, 8, 10 and 11 and requires .NET 4.Read 14 Oct 2026 · firetrust.com
- Trustpilot review distribution
- The Firetrust Trustpilot page shows 12 reviews, with 75% rated five stars and 25% rated one star.Read 14 Oct 2026 · trustpilot.com
- Unlimited accounts
- The Pro edition supports unlimited POP3 and IMAP accounts and works with common providers and email clients.Read 14 Oct 2026 · firetrust.com
- Windows version
- The download page lists MailWasher Pro version 8.5.1 for Windows 7, 8, 10 and 11, and Vista, with an August 2026 release date.Read 2 Oct 2026 · firetrust.com
Plans and prices
MailWasher Free Free 1 email account · no support Read 14 Oct 2026 · firetrust.com
MailWasher Pro — 1 year $49.95 a year Thereafter $34.95 per year Use on 3 computers Read 2 Oct 2026 · firetrust.com
MailWasher Pro 1 year $49.95 a year Thereafter $34.95 per year 3 computers · unlimited email accounts · 1 year updates Read 14 Oct 2026 · firetrust.com
MailWasher Pro — 2 year $77.21 a year Thereafter $34.95 per year Use on 3 computers · 2 years of updates Read 2 Oct 2026 · firetrust.com
MailWasher Pro 2 year $77.21 a year Thereafter $34.95 per year 3 computers · unlimited email accounts · 2 years updates Read 14 Oct 2026 · firetrust.com
MailWasher Pro — 3 year $99.90 a year Thereafter $34.95 per year Use on 3 computers · 3 years of updates Read 2 Oct 2026 · firetrust.com
MailWasher Pro 3 year $99.90 a year Thereafter $34.95 per year 3 computers · unlimited email accounts · 3 years updates Read 14 Oct 2026 · firetrust.com
MailWasher Pro — Lifetime $149.95, paid once Use on 3 computers · all future version updates Read 2 Oct 2026 · firetrust.com
MailWasher Pro Lifetime $149.95, paid once 3 computers · unlimited email accounts · all future versions and updates Read 14 Oct 2026 · firetrust.com
MailWasher Enterprise Server 10 Users $199.95 a year 10 users · unlimited aliases · unlimited domains · future updates during license Read 14 Oct 2026 · firetrust.com
MailWasher Enterprise Server Unlimited Users $499 a year unlimited users · unlimited aliases · unlimited domains · future updates during license Read 14 Oct 2026 · firetrust.com
Strong points and limits
Strong points
- Previews and deletes messages before computer download.
- Pro supports POP3 and IMAP accounts.
- Filtering includes custom and learning filters.
- Pro trial lasts 30 days with full functionality.
- Mobile apps are available for iPhone, iPad, and Android.
Limits
- Free edition is limited to one email account.
- Free edition does not include support.
- Annual Pro plans thereafter cost $34.95 a year.
Who it suits
It suits people who want to screen and delete unwanted email before downloading messages, particularly users with accounts or mail programs listed by Firetrust. Those needing more than one account or support should consider Pro.
MailWasher in depth
Read the full write-up
Overview
MailWasher is a mailbox-screening app for people who want to review messages before they reach a computer’s email program. It suits users who need several ways to flag unwanted mail across familiar accounts; the free edition’s one-account ceiling and Pro’s renewal terms make plan choice important.
Rather than replace an email service or client, MailWasher previews messages on the mail server and lets users delete unwanted ones before downloading them. Firetrust is based in Christchurch, New Zealand.
For more options, see Email Anti-Spam Software.
Key features
Screen mail before it reaches the computer
Previewing and deleting messages on the server creates a useful checkpoint before mail arrives in a desktop program. That is a practical fit for people who want to avoid downloading unwanted messages. MailWasher does not offer quarantine access, however, so it is not a choice for readers who want a separate holding area for suspicious mail.
Several filtering controls
Friends List, Blacklist, RBLs, custom and learning filters, a profanity list and spam ratings give users multiple ways to identify unwanted messages. That range is useful for people who want to shape filtering; readers seeking quarantine as part of the workflow should look elsewhere.
Account support and access
Pro supports POP3 and IMAP accounts, and supported services include Gmail, Outlook.com, Yahoo, AOL, Hotmail and Microsoft 365. It works with email programs such as Outlook, eM Client and Thunderbird. Firetrust says it uses OAuth for services such as Gmail and Outlook.com, or app passwords, rather than requiring users to enter their actual email passwords in MailWasher.
Security and mobile
Firetrust says email content stays on the PC and that only the license key is sent to its servers. The product lists phishing detection and malware scanning. MailWasher Mobile is available for iPhone and iPad through the Apple App Store and for Android through Google Play, giving mobile users an app alongside the Windows version.
Pricing
MailWasher is freemium, with a 30-day Pro trial that includes full functionality. Firetrust also offers a 30-day money-back guarantee for purchases. The paid Pro license includes customer support, provided by email; Free has no support.
MailWasher Free: free. It covers one email account, making it suitable for a single-mailbox user who can do without support. Anyone managing multiple accounts will need Pro.
Pro — 1 year: $49.95 a year, billed Thereafter $34.95 per year; use on 3 computers. It fits users who want multiple accounts and a lower initial commitment, but the renewal price is materially different from the first-year price.
Pro — 2 year: $77.21 a year, billed Thereafter $34.95 per year; use on 3 computers and 2 years of updates. It provides a longer update period, but still renews annually at the stated rate.
Pro — 3 year: $99.90 a year, billed Thereafter $34.95 per year; use on 3 computers and 3 years of updates. This suits buyers prioritizing a longer update span, with the same renewal consideration.
Pro — Lifetime: $149.95, paid once; use on 3 computers with all future version updates. It avoids a recurring renewal, though its upfront cost is higher than the listed first-year options.
Pro removes the one-account limit and supports unlimited email accounts. The 1-, 2- and 3-year plans allow use on three computers; the longer terms specify two or three years of updates respectively. Compare the stated upfront and renewal prices before choosing a term.
Platforms
MailWasher is available for Android, iOS and Windows. The Windows download page lists Pro version 8.5.1 for Windows 7, 8, 10 and 11, and Vista. Mobile apps are available for iPhone, iPad and Android devices.
Who it's for
MailWasher is best suited to people who want to screen messages before downloading them, especially those with multiple accounts who value Pro’s broad account support and configurable filters. The free edition is a reasonable fit for one mailbox and no support requirement. It is less suitable for users who need quarantine access, or for anyone who wants to avoid checking renewal terms on an annual Pro purchase.
Pros and cons
Pros: Server-side preview and deletion lets users reject unwanted messages before download.
Pros: Pro supports unlimited accounts, POP3 and IMAP, and works with a broad set of named mail services and clients.
Pros: Multiple filtering controls and a 30-day fully functional trial give users room to assess and shape screening.
Cons: Free is capped at one account and includes no support, so it is restrictive for multi-mailbox use.
Cons: Annual Pro plans renew at $34.95 per year after their stated first term, which buyers should factor into the cost.
Cons: No quarantine access means flagged messages do not have a separate holding area in MailWasher.
Alternatives
Cleanmail is a paid option with a free trial and self-hosted and web platforms; consider it if those deployment choices suit your needs better.
Retarus Transactional Email is a paid API and web option with a 30-day free trial capped at 5,000 emails and 200 emails per hour, with no load testing. Its transactional-email focus makes it a different category of choice from screening personal mailboxes.
JetEmail is a freemium web option whose free tier does not expire and covers 1,000 subscribers and 1 GB of image storage. Consider it instead if you need a web-based marketing suite rather than pre-download mailbox screening.
Forcepoint ZTNA is a paid option with pricing by request; its listed platforms are macOS, self-hosted, web and Windows.
Mailprotector is a paid email-security alternative with a free Radar email security check and product pricing available from an account manager; consider it if that kind of security check is your priority.
MX Guarddog is freemium, with a free trial and a listed rate of $0.25 a month per email address. Its per-address pricing may suit readers who want to compare that model with MailWasher’s account-based free cap and Pro plans.
Mimecast Data Leak Prevention is a paid web option with custom pricing for its Advanced plan, which adds data protection; consider it when data protection is the priority.
Proxmox Backup Server is a freemium Linux and web product for a different software category.
Verdict
Choose MailWasher if you want a pre-download screening step, flexible filters and support for multiple mail accounts in Pro. Its clearest advantage is removing unwanted messages before they reach a computer; look elsewhere if quarantine access is essential or if you prefer not to manage Pro’s renewal pricing.
Verdict
MailWasher focuses on screening email on the server before messages reach a computer, with a free single-account edition and broader Pro support. Check the account limit and renewal pricing before selecting a plan.
Where Specifiction places it
- Email Anti-Spam Software#2 of 289.0
Alternatives to MailWasherAll alternatives →
Apache SpamAssassin Free plan 9.1 Visit 
Mailprotector Free plan 8.4 Visit 
Cleanmail 7.8 Visit