Apache James Server
James 2 is a mature, production ready code stream with minimal development. Use of the latest stable release is recommended.
The James 3 code base has many new features and major revisions to the architecture are ongoing.
It is recommended only for advanced users who are willing to accept that development is ongoing and that they may need to participate actively. Users are strongly recommended to subscribe to the server-dev mailing list.
| Item | Status | Since | First released |
|---|---|---|---|
| SMTP server | Stable | 1.0 | 0.95 |
| Mailet Engine | Stable | 2.3 | 0.95 |
| FileSystem mailboxes/spool | Stable | 1.2 | 1.0 |
| RDBMS mailboxes/spool | Stable | 1.2 | 1.2 |
| POP3 server | Stable | 1.1 | 1.0 |
| RDBMS - Users | Stable | 1.2.1 | 1.2.1 |
| LDAP Support - Users | Experimental | 1.2 | 1.2 |
| TLS Support - POP3 | Experimental | 1.2 | 1.2 |
| Remote Manager | Stable | 1.0 | 1.0 |
| TLS Support - Remote Manager | Stable | 1.2 | 1.2 |
| NNTP server | Experimental | 1.2 | 1.2 |
| FetchMail | Stable | 2.2 | 2.2 |
| IMAP | Okay | 3.0 | 3.0 |
See here