Issue Description
After migrating from a postgres data store to a foundationdb data store I’m getting some errors.
Expected Behavior
No errors or warnings when starting Stalwart after the migration is done.
Actual Behavior
I’m getting the following error messages when starting stalwart.
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067344640765952, reason = “An lookup store with the stwt_openphish namespace already exists”
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067344808538624, reason = “An lookup store with the stwt_phishtank namespace already exists”
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067344974214144, reason = “An lookup store with the stwt_disposable_domains namespace already exists”
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067345144083968, reason = “An lookup store with the stwt_free_domains namespace already exists”
Reproduction Steps
- Use the stalwart --config /etc/stalwart/config.json --export command to make a dump of the postgres datastore
- Reconfigure (in config.json) to use foundationdb a data store
- Use the stalwart --config /etc/stalwart/config.json --import command to import the data into foundationdb
- Start stalwart
Relevant Log Output
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067344640765952, reason = “An lookup store with the stwt_openphish namespace already exists”
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067344808538624, reason = “An lookup store with the stwt_phishtank namespace already exists”
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067344974214144, reason = “An lookup store with the stwt_disposable_domains namespace already exists”
stalwart-node-2 | 2026-07-24T14:03:54Z ERROR Configuration build error (registry.build-error) source = “HttpLookup”, id = 320067345144083968, reason = “An lookup store with the stwt_free_domains namespace already exists”
Stalwart Version
v0.16.x
Installation Method
Docker
Database Backend
FoundationDB
Blob Storage
S3-compatible
Search Engine
Internal
Directory Backend
Internal
I have reviewed the documentation and FAQ and confirm that my issue is NOT addressed there.
on
I have searched this support forum (open and closed topics) and confirm this is not a duplicate.
on
I understand that topics in this category are triaged by a bot first but a human reply will follow up. If I’d prefer a human-only reply, I’ll add the no-ai tag to my topic.
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