Best SpamSieve Alternatives in 2026
Updated
20 apps from email anti-spam software ranked against SpamSieve on the same published basis.
- 1SpamSieve vs MailWasher
- 2SpamSieve vs JetEmail
- 3SpamSieve vs Mailprotector
- 4SpamSieve vs Cleanmail
- 5SpamSieve vs Mimecast Data Leak Prevention
- 6SpamSieve vs Proxmox Backup Server
- 7SpamSieve vs Retarus Transactional Email
- 8SpamSieve vs Mailinblack Protect
- 9SpamSieve vs MX Guarddog
- 10SpamSieve vs Vade for Microsoft 365
- 11SpamSieve vs SPAMfighter
- 12SpamSieve vs Forcepoint Email Security Cloud
- 13SpamSieve vs Forcepoint ZTNA
- 14SpamSieve vs MailChannels Inbound Filtering
- 15SpamSieve vs NoSpamProxy
- 16SpamSieve vs Sophos Secure Message
- 17SpamSieve vs Symantec IT Management Suite
- 18SpamSieve vs Apache SpamAssassin
- 19SpamSieve vs Rspamd
- 20SpamSieve vs Proxmox Mail Gateway
SpamSieve alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | MailWasher | 6.6 | Free plan | $4.16/mo | Android, iOS, Windows |
| 2 | JetEmail | 6.4 | Free plan | $29/mo | Web |
| 3 | Mailprotector | 6.3 | Free plan | Free | API, Web |
| 4 | Cleanmail | 5.5 | No | — | self-hosted, Web |
| 5 | Mimecast Data Leak Prevention | 5.5 | No | — | Web |
| 6 | Proxmox Backup Server | 5.5 | No | €46.67/mo | Linux, Web |
| 7 | Retarus Transactional Email | 5.5 | No | — | API, Web |
| 8 | Mailinblack Protect | 5.4 | No | — | API, self-hosted, Web |
| 9 | MX Guarddog | 5.4 | No | $0.25/mo | Web |
| 10 | Vade for Microsoft 365 | 5.4 | No | — | Web |
| 11 | SPAMfighter | 5.3 | No | — | Windows |
| 12 | Forcepoint Email Security Cloud | 5.2 | No | — | Web |
| 13 | Forcepoint ZTNA | 5.2 | No | — | Mac, self-hosted, Web, Windows |
| 14 | MailChannels Inbound Filtering | 5.2 | No | — | API, Web |
| 15 | NoSpamProxy | 5.2 | No | — | Web |
| 16 | Sophos Secure Message | 5.2 | No | — | — |
| 17 | Symantec IT Management Suite | 5.2 | No | — | Linux, Mac, Windows |
| 18 | Apache SpamAssassin | 5.1 | No | — | — |
| 19 | Rspamd | 5.1 | No | — | Linux, Mac |
| 20 | Proxmox Mail Gateway | 5.0 | No | €15.83/mo | Linux, Web |
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Questions about SpamSieve alternatives
What is the best alternative to SpamSieve?
MailWasher, number 1 in email anti-spam software with a score of 6.6 out of 10. The others here: JetEmail, Mailprotector, Cleanmail and 16 more.
What is the best free alternative to SpamSieve?
MailWasher is the best-ranked alternative with a free plan. 3 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.