Best MailChannels Inbound Filtering Alternatives in 2026
Updated
20 platforms from email anti-spam software ranked against MailChannels Inbound Filtering on the same published basis.
- 1MailChannels Inbound Filtering vs Apache SpamAssassin
- 2MailChannels Inbound Filtering vs Mailprotector
- 4MailChannels Inbound Filtering vs Mailinblack Protect
- 5MailChannels Inbound Filtering vs Retarus Transactional Email
- 6MailChannels Inbound Filtering vs SpamHero Business Email Security
- 7MailChannels Inbound Filtering vs JetEmail
- 8MailChannels Inbound Filtering vs MailWasher
- 9MailChannels Inbound Filtering vs Rspamd
- 10MailChannels Inbound Filtering vs Cleanmail
- 11MailChannels Inbound Filtering vs Mimecast Data Leak Prevention
- 12MailChannels Inbound Filtering vs Proxmox Backup Server
- 13MailChannels Inbound Filtering vs Vade for Microsoft 365
- 14MailChannels Inbound Filtering vs MX Guarddog
- 15MailChannels Inbound Filtering vs Forcepoint ZTNA
- 16MailChannels Inbound Filtering vs Sophos Secure Message
- 17MailChannels Inbound Filtering vs SPAMfighter
- 18MailChannels Inbound Filtering vs Zerospam
- 19MailChannels Inbound Filtering vs Forcepoint Email Security Cloud
- 20MailChannels Inbound Filtering vs Libraesva Email Security
- 21MailChannels Inbound Filtering vs Mimecast Secure Email Gateway
MailChannels Inbound Filtering alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Apache SpamAssassin | 7.2 | Free plan | Free | API, Linux, self-hosted |
| 2 | Mailprotector | 7.2 | Free plan | Free | API, Web |
| 4 | Mailinblack Protect | 6.9 | No | — | API, self-hosted, Web |
| 5 | Retarus Transactional Email | 6.9 | No | — | API, Web |
| 6 | SpamHero Business Email Security | 6.7 | No | $5/mo | API, Web |
| 7 | JetEmail | 5.9 | Free plan | $10/mo | API, Web |
| 8 | MailWasher | 5.9 | Free plan | $4.16/mo | Android, iOS, Windows |
| 9 | Rspamd | 5.9 | Free plan | £100/mo | Linux, Mac, self-hosted |
| 10 | Cleanmail | 5.6 | No | — | self-hosted, Web |
| 11 | Mimecast Data Leak Prevention | 5.6 | No | — | Web |
| 12 | Proxmox Backup Server | 5.5 | No | €46.67/mo | Linux, Web |
| 13 | Vade for Microsoft 365 | 5.5 | No | — | Web |
| 14 | MX Guarddog | 5.4 | No | $0.25/mo | Web |
| 15 | Forcepoint ZTNA | 5.3 | No | — | Mac, self-hosted, Web, Windows |
| 16 | Sophos Secure Message | 5.3 | No | — | — |
| 17 | SPAMfighter | 5.3 | No | — | Windows |
| 18 | Zerospam | 5.3 | No | €5/mo | Web |
| 19 | Forcepoint Email Security Cloud | 5.2 | No | — | Web |
| 20 | Libraesva Email Security | 5.2 | No | — | self-hosted, Web |
| 21 | Mimecast Secure Email Gateway | 5.2 | No | — | Web |
The sponsored alternative slot on this page is labelled Sponsored.
Questions about MailChannels Inbound Filtering alternatives
What is the best alternative to MailChannels Inbound Filtering?
Apache SpamAssassin, number 1 in email anti-spam software with a score of 7.2 out of 10. The others here: Mailprotector, Mailinblack Protect, Retarus Transactional Email and 16 more.
What is the best free alternative to MailChannels Inbound Filtering?
Apache SpamAssassin is the best-ranked alternative with a free plan. 5 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.