Possible Models

Current (NetApp, mbox)
Cyrus
Archive On Delivery
mbx
...

Evaluation Criteria

Technical
- Hardware requirements
- ID System interoperability
- Transitional issues
- Reliability
- Speed
- ...
Cost
- For equivalent of current service
- For 100MB, 250MB, 500MB, 1GB quotas
- ...
User
- No special client requirements, as long as IMAP/POP
- No mailhub1 configurations
- Multiple simultaneous access (one user, two clients)
- File restoral
- dept.columbia.edu
- Shared mailbox/group use of mail
- ...
...

Goal

Evaluate each possible model with respect to each of the criteria. For each criterion, order each model from most preferred to least preferred solution.