Apache SpamAssassin vs Zerospam
| Apache SpamAssassin | Zerospam | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | Yes |
| Paid from | Free | €5/mo |
| Open source | No | No |
| Platforms | api, Linux, self-hosted | Web |
| Phishing detection | Yes | Yes |
| Malware scanning | Yes | Yes |
| Attachment scanning | Yes | — |
| Supported mail platforms | procmail, sendmail, Postfix, qmail | — |
| Deployment type | self_hosted | cloud_gateway |
| Free plan | — | No |
| Quarantine access | — | admin_only |
Both are listed in Best Email Anti-Spam Software. On Samsung Mobile US Press, Apache SpamAssassin scores higher on our published basis.