All features
Sequences & sending

Mailbox rotation

Assign more than one mailbox to a sequence and sends rotate across them automatically, weighted toward whichever mailbox has the most daily volume left — five mailboxes at 50/day gives the sequence 250 sends/day instead of being pinned to one inbox.

How it works

When a sequence has more than one assigned mailbox, each send picks a mailbox weighted by how much of its daily limit is still unused — a mailbox with more headroom gets picked more often, so volume balances out across the day instead of exhausting one mailbox first.

The process in Sendqube

  1. 1Assign two or more mailboxes to a sequence in its Channel settings.
  2. 2Sendqube tracks sends per mailbox and resets the count daily.
  3. 3Each due send is routed to whichever assigned mailbox currently has the highest remaining daily capacity.
This is live in the product today — not a roadmap item.
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