Best Email Anti-Spam Software in 2026
Updated
Managing unwanted and potentially harmful email starts with checking what a tool scans and which mail environments it supports. Compare phishing detection, malware and attachment scanning, deployment type, and supported mail platforms. Quarantine access and retention provide further details about message handling; free-plan availability and paid-from pricing add cost points. MailWasher, Cleanmail, and JetEmail are among the entries to consider. Use the listed criteria to assess how the options align with your mail setup and your team’s needs for filtering and reviewing suspicious messages.
27ranked
5free plans on this page
$0.25/molowest paid tier
8 Oct 2026last checked
Email Anti-Spam Software, ranked on how quickly a newcomer can get going.14 of 14 products with recorded free access can be tried for free.
- 1 MailWasherPaid from $4.16/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 2 RspamdPaid from £100/mo
- Free to practise on: yes
- Well documented: yes
- Runs where you work: no
- 3 Cleanmail
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 4 JetEmailPaid from $10/mo
- Free to practise on: yes
- Free trial: no
- Well documented: yes
- Runs where you work: no
- 5 Retarus Transactional Email
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 6 Sophos Secure Message
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 7 MailprotectorFree plan
- Free to practise on: yes
- Well documented: yes
- Runs where you work: no
- 8 MX GuarddogPaid from $0.25/mo
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 9 Apache SpamAssassinFree plan
- Free to practise on: yes
- Free trial: no
- Well documented: yes
- Runs where you work: no
- 10 ZerospamPaid from €5/mo
- Free to practise on: no
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 11 Mimecast Data Leak Prevention
- Well documented: yes
- Runs where you work: no
- 12 SpamHero Business Email SecurityPaid from $5/mo
- Free to practise on: no
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 13 SpamSieve
- Free to practise on: no
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 14 SpamTitan Gateway
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 15 Libraesva Email Security
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 16 MailChannels Inbound Filtering
- Well documented: yes
- Runs where you work: no
- 17 Mailinblack Protect
- Well documented: yes
- Runs where you work: no
- 18 Proxmox Backup ServerPaid from €46.67/mo
- Well documented: yes
- Runs where you work: no
- 19 Forcepoint ZTNA
- Well documented: yes
- Runs where you work: yes
- 20 Vade for Microsoft 365
- Well documented: yes
- Runs where you work: no
- 21 SPAMfighter
- Well documented: yes
- Runs where you work: no
- 22 Forcepoint Email Security Cloud
- Well documented: no
- Runs where you work: no
- 23 Mimecast Secure Email Gateway
- Well documented: yes
- Runs where you work: no
- 24 NoSpamProxy
- Well documented: no
- Runs where you work: no
- 25 Proxmox Mail GatewayPaid from €15.83/mo
- Free to practise on: no
- Well documented: yes
- Runs where you work: no
Compare all 25 in a table
| # | Platform | Score | Free plan | Paid from | Phishing detection | Malware scanning |
|---|---|---|---|---|---|---|
| 1 | MailWasher | 7.8 | Yes | Yes | Yes | |
| 2 | Rspamd | 7.0 | Yes | |||
| 3 | Cleanmail | 6.9 | Yes | Yes | ||
| 4 | JetEmail | 6.9 | Yes | |||
| 5 | Retarus Transactional Email | 6.9 | Yes | Yes | ||
| 6 | Sophos Secure Message | 6.9 | No | |||
| 7 | Mailprotector | 6.8 | ||||
| 8 | MX Guarddog | 6.8 | Yes | Yes | Yes | |
| 9 | Apache SpamAssassin | 6.6 | Yes | Yes | ||
| 10 | Zerospam | 6.6 | No | Yes | Yes | |
| 11 | Mimecast Data Leak Prevention | 6.5 | No | Yes | Yes | |
| 12 | SpamHero Business Email Security | 6.5 | No | |||
| 13 | SpamSieve | 6.5 | No | No | ||
| 14 | SpamTitan Gateway | 6.5 | No | 1.95 /user/mo | ||
| 15 | Libraesva Email Security | 6.4 | No | |||
| 16 | MailChannels Inbound Filtering | 6.4 | Yes | Yes | ||
| 17 | Mailinblack Protect | 6.3 | Yes | Yes | ||
| 18 | Proxmox Backup Server | 6.3 | No | |||
| 19 | Forcepoint ZTNA | 6.2 | Yes | Yes | ||
| 20 | Vade for Microsoft 365 | 6.2 | Yes | Yes | ||
| 21 | SPAMfighter | 6.0 | Yes | Yes | Yes | |
| 22 | Forcepoint Email Security Cloud | 5.9 | Yes | Yes | ||
| 23 | Mimecast Secure Email Gateway | 5.8 | No | Yes | Yes | |
| 24 | NoSpamProxy | 5.8 | Yes | Yes | ||
| 25 | Proxmox Mail Gateway | 5.8 | No |
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