Connect InboxKit Mailboxes to Saleshandy in Under 4 Minutes

Saleshandy connects to InboxKit via standard email + password in the Sequencers Connect screen. Paste your Saleshandy login, InboxKit validates against their API, and every selected InboxKit mailbox gets provisioned inside Saleshandy as a new sender. The connect takes about 90 seconds.

Saleshandy's differentiators are its built-in 800M+ B2B contact database (you can source prospects directly inside the tool instead of importing from Apollo or ZoomInfo) and its sender rotation logic (Saleshandy automatically splits a campaign across multiple mailboxes to keep each one under reputation thresholds). Both of those work best when paired with real mailboxes, which is where InboxKit comes in.

Saleshandy's sender rotation distributes a campaign's daily send volume across every connected mailbox automatically. You don't manually configure 'mailbox 1 does 10, mailbox 2 does 15', Saleshandy just spreads the load. The practical effect is that you should push more InboxKit mailboxes than you would for tools without rotation.

The thin-distribution approach is what protects reputation. At 13-14/day per mailbox, each sender looks like a moderate-volume professional, not a bulk cold email machine. Reputation holds steady and deliverability stays high. For the math on how per-mailbox volume maps to reputation, see scale cold email 100 to 10000.

InboxKit plan fit. 25 mailboxes means Agency plan at $99/month. The math is: $99 + 25 × $3.25 extra-mailbox cost = ~$180/month for 25 mailboxes. Compare that to pushing 8 mailboxes into a tool without rotation and getting worse deliverability. The Agency tier plus Saleshandy rotation is a much better cost-per-reliable-send ratio at volume.

Gather these:

On the 800M database. Saleshandy's contact database is behind a paid tier of the Saleshandy plan, it's not free with every account. If you're not using the database, you can connect on a lower tier and use Saleshandy purely as a sender + unified inbox. For teams bringing their own prospect data (from Clay, Apollo, LinkedIn Sales Navigator), the basic Saleshandy plan plus the InboxKit mailbox layer is the cheapest configuration.

The full click path:

Total: about 2 minutes.

The slightly longer export time is because Saleshandy registers each mailbox into its rotation pool during the push, which requires an extra API call per mailbox. For a 10-mailbox export, expect ~40-60 seconds.

Because Saleshandy rotates automatically, you set a total daily volume at the campaign level and Saleshandy figures out the per-mailbox distribution. The ramp-up still matters, though: new mailboxes should stay in warmup-only for days 1-14 and gradually contribute to campaigns after that.

Mixed-age pool. If you have some mailboxes at day 30 and others at day 60, Saleshandy applies per-mailbox caps and rotates accordingly. Set the mature mailboxes to 40/day and the new ones to 15/day, and the rotation will naturally skew volume toward the mature mailboxes. This is the right way to scale a campaign: add new mailboxes to the pool, start them at 15/day, let them mature, bump them up after day 30.

Warmup. Saleshandy does not ship built-in warmup: pair with InboxKit isolated warmup at $3/mailbox/month, or a dedicated tool like TrulyInbox or Warmy.io. Do not run two warmup engines on the same mailbox simultaneously.

Saleshandy's unified inbox aggregates replies across every connected InboxKit mailbox. At 25 mailboxes running, you could see 50-200 replies/day depending on response rate. The unified inbox is the tool that makes this manageable.

For a single-sender-tool setup (Saleshandy only), the unified inbox is plenty. If you're running multiple senders (Saleshandy + Instantly + Smartlead), stack Master Inbox on top for cross-tool aggregation.

The failure modes for InboxKit → Saleshandy connections:

On the rotation throttle. This is worth flagging because it looks like the rotation is broken when it's actually working correctly. Saleshandy tracks per-mailbox reputation internally and throttles mailboxes it thinks are at risk. For new mailboxes, Saleshandy may skip them in rotation for the first 3-7 days even if they're technically available. The fix is patience: let warmup finish, let Saleshandy observe a week of healthy sending, and the throttle auto-releases.

Five checks before scaling a campaign:

Test 1: all mailboxes appear in Saleshandy. Log into Saleshandy and open Email Accounts. Confirm every InboxKit mailbox you exported is listed with status 'Active'.

Test 2: rotation is firing. Run a 100-prospect test campaign. After Saleshandy sends the first 50, check which mailboxes actually sent. You want to see ~5 per mailbox across 10 mailboxes, not 50 from one mailbox. If it's lopsided, rotation is either disabled or throttled.

Test 3: reply round-trip into unified inbox. Reply to one of the test sends. Within 2 minutes, the reply should appear in Saleshandy's unified inbox with an auto-classification. If it doesn't, IMAP is broken.

Test 4: inbox placement. Run a seed-list test across Gmail, Outlook, Yahoo, Hotmail. Target 9/10+. Saleshandy's thin-rotation approach should land you consistently above 9/10 for any properly warmed mailbox pool.

Test 5: sender reputation after 7 days. After a week of real campaign sends, check Google Postmaster Tools for your sending domain. You want 'High' or 'Medium' reputation. If it's declining, something is wrong: usually warmup or DNS, not Saleshandy itself.