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# Connect Mission Inbox OBM API to SuperSend

# Connect Mission Inbox OBM API to SuperSend

## Purpose

The Mission Inbox OBM (Outbound Mail) API enables high-volume sending through Mission Inbox's managed infrastructure. This article walks through connecting your Mission Inbox API to SuperSend, syncing domains, creating send-as mailboxes, and configuring reply routing so you can run campaigns at scale with full Super Inbox support.

## Prerequisites

- A Mission Inbox account with at least one domain configured
- Your Mission Inbox API key (from Mission Inbox → Settings → Platform API)
- Org admin permissions in SuperSend

## Step 1: Get Your Mission Inbox API Key

1. Log in to [Mission Inbox](https://missioninbox.com)
2. Go to **Settings** → **Platform API**
3. Find your API key and copy it

## Step 2: Connect Mission Inbox in SuperSend

1. Log in to [SuperSend](https://app.supersend.io)
2. Go to **Admin** → **Integrations**
3. Select your team from the dropdown
4. In the Sending Providers section, find **MissionInbox**
5. Click **Manage** → **Add Account**
6. Paste your API key and save

**Domains sync automatically** — Within about 5 minutes, all domains from your Mission Inbox account will appear in SuperSend. You can then create send-as mailboxes on those domains.

## Step 3: Add OBM API Senders

You can add senders in two ways: **single sender** or **bulk import via CSV**.

### Option A: Add a Single Sender

1. Go to **Senders** → **Add Sender** → **Email Sender**
2. Click **Connect Your Own Mailboxes**
3. Find **Mission Inbox OBM API** under "Email API Providers" and click it
4. Enter:
   - **API Key** — your Mission Inbox API key (or use the one from Admin → Integrations if connected)
   - **Send As Email** — an email address using a domain synced from your Mission Inbox account (e.g. `curtis@meet.teamsupersend.com`)
   - **Reply-To Email** — where replies should be directed (for Super Send reply routing, use an address that routes to SuperSend)
   - **Track Replies** — enable if your Mission Inbox plan supports reply detection
5. Click **Connect**

### Option B: Bulk Import via CSV

1. Go to **Senders** → **Add Sender** → **Email Sender**
2. Click **Connect Your Own Mailboxes**
3. Select **Mission Inbox OBM API** (or Mission Inbox bulk import option if available)
4. Click **Bulk import via CSV**
5. Download the CSV template and fill in:
   - `email` — email address (must use a synced domain)
   - `send_as` — display name
   - `reply_to` — reply-to address for Super Send reply routing
   - `global_max_per_day` — daily send limit (e.g. 25)
6. Upload the completed CSV

**Typical setup for ~500 cold emails/day:** Configure about 16–17 senders with a global max of ~25 emails per day each. Mission Inbox allows up to 500 cold production emails per day; this spread keeps you within that limit.

## Step 4: Configure Reply Routing via Inbound Webhook

To receive replies in **Super Inbox** (enabling auto-pause, unsubscribe handling, and reply detection), configure the inbound webhook in Mission Inbox:

1. Go to [Mission Inbox API Sending](https://v4.missioninbox.com/api-sending)
2. Click the **Inbound webhook** tab
3. Enter the following webhook URL:
   ```
   https://api.supersend.io/v1/mailbox/webhook/missioninbox/inbound
   ```
4. Click **Save**

Once saved, replies to your OBM API senders will automatically appear in Super Inbox within SuperSend.

## Step 5: Attach to a Sender Profile

After adding OBM senders, attach them to a sender profile so campaigns can use them:

1. Go to **Senders** → **Sender Profiles** tab
2. Open a profile (or create one)
3. Click **Add Mailboxes** and select the Mission Inbox OBM senders
4. Save

See [Create and Use Sender Profiles](https://help.supersend.io/en/article/create-and-use-sender-profiles-1g4rjqt/) for details.

## Step 6: Ramp Up (Recommended)

Mission Inbox recommends ramping up new infrastructure gradually. On each sender, configure ramp-up in the **Limits** tab:

- Example: If your target is 25 emails per day, set a ramp-up of **5 emails over 14 days**
- SuperSend will start at 5/day and increase over 14 days until you reach 25/day

## Expected Result

Mission Inbox OBM API senders are connected, domains are synced, send-as mailboxes are created, and reply routing is configured. Senders appear in Senders → Mailboxes and can be attached to sender profiles for campaign use.

## Troubleshooting

- **Issue:** Domains don't sync after adding the integration.  
  **Fix:** Verify the API key is correct. Allow 5 minutes for sync, then refresh. Check that your Mission Inbox account has domains configured.

- **Issue:** OBM API sender connected but emails aren't going out.  
  **Fix:** Verify the sending domain is verified and active in your Mission Inbox account. Confirm the sender profile is assigned to the campaign. Check that you're within Mission Inbox daily limits.

- **Issue:** Replies aren't appearing in Super Inbox.  
  **Fix:** Confirm the inbound webhook is configured in Mission Inbox. Go to [v4.missioninbox.com/api-sending](https://v4.missioninbox.com/api-sending) → **Inbound webhook** tab and verify the URL is set to `https://api.supersend.io/v1/mailbox/webhook/missioninbox/inbound`.

## Related Articles

- [Mission Inbox Integration Setup](https://help.supersend.io/en/article/mission-inbox-integration-setup-l8d8xs/)
- [Connect Mission Inbox Senders](https://help.supersend.io/en/article/connect-mission-inbox-senders-i03wap/)
- [Create and Use Sender Profiles](https://help.supersend.io/en/article/create-and-use-sender-profiles-1g4rjqt/)