Error
Unable to write to database because database would exceed its disk quota.
Description
This error indicates that the Lotus Domino server was not able to generate the MIME content of a message because the corresponding mailbox exceeded its disk quota.
Resolution
To solve this issue, we recommend either to:
- Compact the user mail database
- Increase the quota limit for the affected mailbox to allow the migration to end.
Refer to these articles for more details: