Access & visibility
Allow support.AddInboxSupportAddress on your API key.
Workspace access by default. Private member data requires approved member delegation through Brigg-Act-As; the key supplies permissions while private ownership and project boundaries remain enforced.
Request fields
Send a JSON object with the following fields. Required fields must be included; omit optional fields you do not need.
inbox_idstringRequiredUse the support inbox record's top-level id, not its slug or forwarding address. support.ListInboxes.
At least 1 character.
addressstringRequiredPublic support email address that you have configured to forward into this inbox. Adding sends a verification email; it does not configure your email provider.
At least 3 characters. At most 254 characters.
Verify forwarding before using a support address
Get the inbox_id and forwarding address from List inbox channels. Configure your mail provider to forward the public support address into that inbox, then add the address. Adding it sends a verification email; the address becomes verified only when that email is forwarded back into the correct Brigg inbox.
List support addresses to check verified_at. A test=sent response only confirms a send attempt; it is not verification. Only the newest test can verify, and it expires after 24 hours. Fix forwarding before requesting another test. Verification permits that address to be used as Reply-To for its conversations; it does not change the authenticated sender.
Removing the address withdraws its verified Reply-To use. It does not remove your mail provider's forwarding rule or delete the inbox and its conversations. Change provider forwarding separately when retiring the address.
Response
Returns 200 OK with a JSON body.
addressobjectRequiredStreet address, including building or unit when applicable.
Nested fields
idstringRequiredAdditional address id from ListInboxSupportAddresses.items for this same inbox_id. It is not the email address, inbox ID, or a verification token.
addressstringRequiredNormalized additional public support email address, distinct from Brigg's generated inbox-forwarding address.
created_atnumberRequiredUnix millisecond timestamp when this address was added.
verified_atnumber or nullRequiredUnix millisecond time a valid test returned through this inbox, or null while unverified.
test_sent_atnumber or nullRequiredUnix millisecond time the newest test was sent, or null if no test has been sent. This does not prove verification.
teststringRequiredsent means a test email was sent; already_verified sends nothing; rate_limited means wait before requesting another test; send_failed means delivery could not be initiated. Read verified_at to confirm forwarding verification.
Errors & retries
Set BRIGG_REQUEST_ID once for each logical action. The samples send it as Idempotency-Key. Reuse the same value and body on retries, including after a timeout; a missing response does not prove the action failed.
For rate limits, follow the server’s retry guidance and back off. See HTTP errors and safe retries and limits.
| HTTP status | Code | What to do |
|---|---|---|
| 400 | invalid_json |
Send a JSON object with Content-Type: application/json. |
| 400 | invalid_input |
Check the request fields and types. Supply a stable Idempotency-Key containing 1–200 characters. |
| 401 | invalid_key |
The workspace API key is missing, invalid or revoked. |
| 403 | forbidden |
Check the key’s operation and resource grants. If Brigg-Act-As is supplied, the key must be authorized to delegate to that member. |
| 404 | not_found |
The requested operation or resource is not available to this credential. |
| 429 | rate_limited |
Wait for Retry-After before retrying. Reuse the original Idempotency-Key. |
| 400 | invalid_address |
Supply a single valid public support email address. |
| 400 | too_many |
The inbox already has the supported twenty additional addresses. Review existing entries before removing any. |
| 409 | org_not_provisioned |
This workspace has no inbox-forwarding configuration yet. Finish inbox setup in Brigg. |
Next steps
JSON schemas
Use the complete schemas for validation or client generation.
Full request JSON schema
{
"type": "object",
"properties": {
"inbox_id": {
"type": "string",
"minLength": 1,
"description": "Use the support inbox record's top-level id, not its slug or forwarding address. [support.ListInboxes](/reference/support/ListInboxes)."
},
"address": {
"type": "string",
"minLength": 3,
"maxLength": 254,
"description": "Public support email address that you have configured to forward into this inbox. Adding sends a verification email; it does not configure your email provider."
}
},
"required": [
"inbox_id",
"address"
],
"additionalProperties": false,
"examples": [
{
"inbox_id": "e_inbox_support",
"address": "help@example.com"
}
]
}Full response JSON schema
{
"type": "object",
"properties": {
"address": {
"type": "object",
"properties": {
"id": {
"type": "string",
"description": "Additional address id from ListInboxSupportAddresses.items for this same inbox_id. It is not the email address, inbox ID, or a verification token."
},
"address": {
"type": "string",
"description": "Normalized additional public support email address, distinct from Brigg's generated inbox-forwarding address."
},
"created_at": {
"type": "number",
"description": "Unix millisecond timestamp when this address was added."
},
"verified_at": {
"type": [
"number",
"null"
],
"description": "Unix millisecond time a valid test returned through this inbox, or null while unverified."
},
"test_sent_at": {
"type": [
"number",
"null"
],
"description": "Unix millisecond time the newest test was sent, or null if no test has been sent. This does not prove verification."
}
},
"required": [
"id",
"address",
"created_at",
"verified_at",
"test_sent_at"
],
"additionalProperties": false,
"description": "Street address, including building or unit when applicable."
},
"test": {
"type": "string",
"description": "sent means a test email was sent; already_verified sends nothing; rate_limited means wait before requesting another test; send_failed means delivery could not be initiated. Read verified_at to confirm forwarding verification."
}
},
"required": [
"address",
"test"
],
"additionalProperties": false,
"examples": [
{
"address": {
"id": "isa_help",
"address": "help@example.com",
"created_at": 1794301200000,
"verified_at": null,
"test_sent_at": 1794301200000
},
"test": "sent"
}
]
}