Deliverability

Automated Multi-Sender Account Rotation

Scale your outbound volume to tens of thousands of emails without risking account burn. OutSends automatically rotates outgoing messages across 15, 50, or unlimited mailboxes in round-robin fashion, keeping daily volume per account low and safe.

Sender Rotation Scale Outbound Deliverability Multi-Inbox

How it works

Get started with multi sender rotation in a few simple steps.

Connect your sender accounts

Add 15 senders on Starter, 50 on Pro, or unlimited on Growth via Gmail OAuth or custom SMTP.

Select senders for your campaign

Select which pool of accounts should participate in your outreach campaign.

Configure per-sender daily ceilings

Cap each mailbox at 30–40 emails per day to keep sending patterns completely natural.

Launch distributed campaign

OutSends automatically dispatches emails sequentially across the account pool.

Why OutSends for multi sender rotation

Everything you need, integrated in one workspace.

  • Distributes volume across multiple domains and mailboxes to isolate risk
  • Keeps individual mailbox sending under 40 emails/day for pristine deliverability
  • Auto-failover skips temporarily disconnected accounts without stopping campaigns
  • Connect up to 50 accounts on Pro ($49/mo) and unlimited accounts on Growth

Related features

Explore more capabilities that work alongside multi sender rotation.

Frequently asked questions

Why is sender rotation necessary for cold email?

Sending hundreds of cold emails from a single mailbox quickly triggers spam flags and domain blacklisting. Rotating across 15 to 50 mailboxes spreads the load safely.

How many accounts can I connect to OutSends?

Starter includes 15 connected senders, Pro includes 50 senders, and Growth & Team plans offer unlimited connected senders.

What happens if one sender account hits a temporary provider limit?

OutSends automatically routes remaining campaign emails through the other active sender accounts in your pool, ensuring zero campaign disruption.

Start Free

Ready to try multi sender rotation?

Create a workspace, connect a sender, and launch your first campaign \u2014 free, no credit card.