How to build a sender rotation plan responsibly?

A responsible sender rotation plan distributes load while maintaining each sending account's health.

Rotation principles:

Distribute volume across multiple mailboxes

Give each account rest periods between heavy use

Monitor each account's reputation separately

Retire accounts showing problems before they worsen

Setup considerations:

Multiple mailboxes per domain

Multiple domains for additional isolation

Each mailbox properly configured with authentication

Sufficient accounts to allow rotation without overuse

Rotation strategies:

Round-robin: Each send uses next account in sequence

Weighted: Better-performing accounts get more volume

Time-based: Different accounts for different time periods

Engagement-based: Route to accounts based on prospect characteristics

Management practices:

Track metrics per sending account

Set per-account daily limits

Rest accounts that show strain (deliverability dips)

Replace burned accounts rather than pushing them

Documentation:

Record which accounts are in rotation

Track usage history and performance

Plan for account retirement and replacement

Rotation manages risk but doesn't eliminate consequences of poor practices.