| EnBinary (73%) |
| EnHTML (85%) |
| EnPlain (83%) |
| Enclosure (N/A) |
| Envelope (57%) |
| PostNoDrafts (0%) |
| PostNoLoops (81%) |
| Postman (51%) |
| Protocol (100%) |
| SMTP (75%) |
| SMTPS (75%) |
| StBCC (62%) |
| StCC (75%) |
| StHeader (75%) |
| StRecipient (62%) |
| StReplyTo (60%) |
| StSender (62%) |
| StSubject (69%) |
| Stamp (N/A) |
| Token (87%) |
| Wire (N/A) |