InboxKit allows you to seamlessly connect your mailboxes to Instantly so you can automate outreach without any manual setup. This guide covers how to connect Instantly, configure exports, enable Auto-Export, and troubleshoot common issues.
🔗 Part 1: Connect Instantly to InboxKit
Follow these steps to integrate your Instantly account:
Step 1: Go to Sequencers
From your InboxKit dashboard, navigate to Sequencers (left sidebar).
Click Add Sequencer.
Step 2: Select Instantly
Choose Instantly from the list of available platforms.
You will see required fields: Email, Password, and Workspace (optional).
Step 3: Enter Your Instantly Credentials
Fill in the following:
Email – the same email you use to log into Instantly
Password – your Instantly login password
Workspace Name – only if you use multiple workspaces inside Instantly
Finally, click Connect Instantly.
Your sequencer will now appear in the Sequencers list with a connected status.
📤 Part 2: Export Your Mailboxes to Instantly
After connecting Instantly, you can export mailboxes manually or automatically.
Manual Export
Go to Exports in InboxKit.
Click Create Export.
Choose Instantly as your sequencer.
Select the mailboxes you want to export.
Click Create Export Job.
Exporting usually completes within 5–30 minutes.
Once done, your mailboxes will appear inside Instantly under your sending accounts.
⚡ Auto-Export (Recommended)
InboxKit also supports Auto Export, which saves you time.
When enabled:
New mailboxes you purchase and activate will automatically sync to Instantly.
No need to manually trigger exports every time you scale.
To turn it on:
Go to Sequencers → Instantly → Settings
Enable Auto Export
❗ Export Failures: Common Reasons & Fixes
If your export fails, it is usually due to one of the following:
1. Incorrect Credentials
Ensure:
Your Instantly login email is correct
Your Instantly password is correct
Your Workspace Name matches exactly (case-sensitive)
2. Subscription Expired in Instantly
You must have an active Instantly subscription.
If the subscription is inactive, export will fail.
3. Two-Factor Authentication Enabled (2FA)
Instantly does not support API login or mailbox sync with 2FA enabled.
Disable 2FA temporarily from Instantly settings.
4. Instantly Account Limits
If your Instantly plan has reached:
Mailbox limits
Workspace limits
…new mailboxes cannot be added.
🎯 You're All Set
Once connected and exported, your mailboxes will be ready for sending campaigns inside Instantly—fully warmed, authenticated, and optimized by InboxKit.