| Messages per Mth | 2 | 25 | 200 | Varies by Plan | Unlimited users |
| Email Open Tracking | ✔ | ✔ | ✔ | ✔ | ✔ |
| Timestamp Open Reports | ✔ | ✔ | ✔ | ✔ | ✔ |
| Send Marked to Convey Importance | ✔ | ✔ | ✔ | ✔ | ✔ |
| Send Unmarked for Appearance of Normal Email | ✔ | ✔ | ✔ | ✔ | ✔ |
| Proof of delivery, time of delivery, and exact content | ✔ | ✔ | ✔ | ✔ | ✔ |
| Delivery Audit Trail | ✔ | ✔ | ✔ | ✔ | ✔ |
| Message Authentication & Reconstruction | ✔ | ✔ | ✔ | ✔ | ✔ |
| Advanced Archiving Options* | – | – | – | ✔ | ✔ |
| Message Level Encryption | ✔ | ✔ | ✔ | ✔ | ✔ |
| Multiple Password Options | ✔ | ✔ | ✔ | ✔ | ✔ |
| Prove Compliant Encrypted Delivery | ✔ | ✔ | ✔ | ✔ | ✔ |
| Auto TLS | – | – | ✔ | ✔ | ✔ |
| Content Filtering | – | – | – | ✔ | ✔ |
| Send Documents for Signature | ✔ | ✔ | ✔ | ✔ | ✔ |
| Sign Documents | ✔ | ✔ | ✔ | ✔ | ✔ |
| Click-to-Sign | ✔ | ✔ | ✔ | ✔ | ✔ |
| Multi-Party Signoff | ✔ | ✔ | ✔ | ✔ | ✔ |
| Signing Order Options | ✔ | ✔ | ✔ | ✔ | ✔ |
| LargeMailTM File Transfer | Up to 200 MB | Up to 1GB | Up to 1GB | Up to 1GB | Up to 1GB |
| PDF Conversion | ✔ | ✔ | ✔ | ✔ | ✔ |
| SideNote® Private Notes | ✔ | ✔ | ✔ | ✔ | ✔ |
| DigitalSeal® Sender Authentication | ✔ | ✔ | ✔ | ✔ | ✔ |
| Metadata Removal | ✔ | ✔ | ✔ | ✔ | ✔ |
| PDF Form Automation* | – | – | – | – | ✔ |
| Online Knowledge Base | ✔ | ✔ | ✔ | ✔ | ✔ |
| Support Ticketing | – | ✔ | ✔ | ✔ | ✔ |
| Phone Support | – | – | – | ✔ | ✔ |
| Premium Support* | – | – | – | ✔ | ✔ |
| Automated Reporting | ✔ | ✔ | ✔ | ✔ | ✔ |
| Custom Reporting* | – | – | ✔ | ✔ | ✔ |
| Custom Branding and Localization* | – | – | ✔ | ✔ | ✔ |
| Custom API Integration* | – | – | – | ✔ | ✔ |
