Reconnect mailboxes in a batch

Queues one reconnect batch for mailboxes whose status is suspended, failed or error — the same check as the dashboard's Reconnect. The sending-worker re-verifies each mailbox from its sending IP (SMTP login, or OAuth token refresh + SMTP for Gmail/Outlook):

passed → status active, sending re-enabled, error fields cleared.
failed → status error with lastError set. Mailboxes are never deleted.

Select with mailboxIds, or omit it to take every mailbox in the workspace matching status (default: all three). status also narrows mailboxIds; listed mailboxes in other statuses come back in skipped. At most 500 mailboxes per batch — larger selections are rejected with BATCH_TOO_LARGE, not split.

Not reconnected:

Mailboxes suspended because the workspace owner's subscription lapsed. They're restored automatically once the subscription is renewed. Listed in skipped when selected by ID, and counted in billingSuspendedSkipped.
Mailboxes already in a reconnect batch that is still pending or processing. They come back in skipped with that batchId. If nothing else is left to queue, the request fails with 409 ALREADY_IN_PROGRESS and the running batch IDs, so retrying can't pile up logins against the mail provider.

Poll GET /v1/mailboxes/reconnect/{batchId} for progress.

curl -X POST "https://api.sendkit.ai/v1/mailboxes/reconnect" \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -d '{
  "status": [
    "suspended",
    "failed"
  ]
}'

import requests
import json

url = "https://api.sendkit.ai/v1/mailboxes/reconnect"
headers = {
  "Content-Type": "application/json",
  "X-Api-Key": "YOUR_API_KEY"
}
data = {
  "status": [
    "suspended",
    "failed"
  ]
}

response = requests.post(url, headers=headers, json=data)
print(response.json())

const response = await fetch("https://api.sendkit.ai/v1/mailboxes/reconnect", {
  method: "POST",
  headers: {
  "Content-Type": "application/json",
  "X-Api-Key": "YOUR_API_KEY"
},
  body: JSON.stringify({
  "status": [
    "suspended",
    "failed"
  ]
})
});

const data = await response.json();
console.log(data);

package main

import (
    "fmt"
    "net/http"
    "bytes"
    "encoding/json"
)

func main() {
    data := []byte(`{
  "status": [
    "suspended",
    "failed"
  ]
}`)

    req, err := http.NewRequest("POST", "https://api.sendkit.ai/v1/mailboxes/reconnect", bytes.NewBuffer(data))
    if err != nil {
        panic(err)
    }

    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("X-Api-Key", "YOUR_API_KEY")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    fmt.Println("Response Status:", resp.Status)
}

require 'net/http'
require 'json'

uri = URI('https://api.sendkit.ai/v1/mailboxes/reconnect')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request['X-Api-Key'] = 'YOUR_API_KEY'
request.body = '{
  "status": [
    "suspended",
    "failed"
  ]
}'

response = http.request(request)
puts response.body

{
  "success": true,
  "data": {
    "batchId": "smtp_reconnect_test_1761200000000_k3j9x2a",
    "status": "pending",
    "queuedCount": 1,
    "skippedCount": 1,
    "notFoundCount": 0,
    "billingSuspendedSkipped": 0,
    "queued": [
      {
        "id": "665f1c2e9b1e8a0012345678",
        "email": "sam@acme.com",
        "status": "suspended"
      }
    ],
    "skipped": [
      {
        "id": "665f1c2e9b1e8a0012345679",
        "email": "alex@acme.com",
        "reason": "Skipped — status is active"
      }
    ],
    "notFound": []
  }
}

{
  "error": "Bad Request",
  "message": "The request contains invalid parameters or malformed data",
  "code": 400,
  "details": [
    {
      "field": "email",
      "message": "Invalid email format"
    }
  ]
}

{
  "success": false,
  "error": {
    "code": "ALREADY_IN_PROGRESS",
    "message": "These mailboxes are already being reconnected. Poll batch smtp_reconnect_test_1761200000000_k3j9x2a for progress.",
    "batchIds": [
      "smtp_reconnect_test_1761200000000_k3j9x2a"
    ]
  }
}