Proofpoint Sendmail Open Source vs. Zscaler Zero Trust Cloud
A side-by-side comparison based on G2 review data.
| Metric | Proofpoint Sendmail Open Source | Zscaler Zero Trust Cloud |
|---|---|---|
| Overall rating | 4.2 | 4.5 |
| Review count | 15 | 114 |
| Ease of use | 8.6 | 9.0 |
| Ease of setup | 8.9 | 8.8 |
| Quality of support | 8.1 | 9.1 |
| Meets requirements | 9.0 | 9.1 |
| NPS | 42.857143 | 68.867925 |
| Small Business | 40.0% | 21.1% |
| Mid-Market | 33.3% | 30.7% |
| Enterprise | 26.7% | 48.2% |
| Total page views | 65 | 525 |
| Total LLM citations | 5 | 2,668 |
Proofpoint Sendmail Open Source
Open source email server and solutions from Proofpoint
- Security
Zscaler Zero Trust Cloud
Zscaler global cloud delivers the entire gateway security stack as a service. By securely connecting users to their applications, regardless of device, location, or network, Zscaler is transforming enterprise security.
- Security
- Threat Detection
- VPN Installation
- Threat Protection
- Ease of Use
- Protection