Fraudmarc vs InboxSys
| Fraudmarc | InboxSys | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | Web |
| Free plan | Yes | No |
| Paid from | 2 /mo | — |
| Authentication monitoring | Yes | Yes |
| Inbox placement monitoring | — | Yes |
| Sender reputation monitoring | — | Yes |
| Blocklist monitoring | — | Yes |
| API access | — | Yes |
Both are listed in Best Email Deliverability Software. On Everything Xiaomi, Fraudmarc scores higher on our published basis.