Deliverability

A full queue should not become a sending spike

Set the pace for each mailbox. Daily caps, spacing and local sending windows constrain approved outreach while warming traffic stays separate from campaign conversations.

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Deliverability

Set the pace at the mailbox

Choose how many messages a mailbox can send. Send reservations prevent concurrent work from consuming the same remaining capacity.

Mailbox settings

Example configuration. Limits and hours are chosen for each mailbox.

Sending limits

Daily cap
30 messages
Minimum spacing
10 minutes
Timezone
Australia/Sydney

Sending windows

Monday9:00 AM – 5:00 PM
Tuesday9:00 AM – 5:00 PM
Wednesday9:00 AM – 5:00 PM
Thursday9:00 AM – 5:00 PM
Friday9:00 AM – 5:00 PM

Weekend sending off

Sending queue

Approved messages wait for an available sending slot.

Contact history

Suppression checks use contact history to avoid inappropriate repeat outreach.

Unsubscribe controls

Use the workspace unsubscribe setting and retain opt-out state on the record.

In your workflow

Operational controls

Caps and windows limit sending behavior; they do not guarantee inbox placement. Thread matching keeps replies connected even when a sender address changes. Pair mailbox controls with approval requirements for each campaign.

Approvals

Review proposed actions · Example data

AM

Alex Morgan

Needs approval

[email protected]

Northstar Supplies · Supplier outreach agent

Send email

Not sent
To
[email protected]
Subject
Supplier reviews at Northstar

Hi Alex,

I saw Northstar coordinates suppliers across regional sites. We help operations teams prepare supplier reviews ahead of renewal.

How does your team handle those reviews today?

Jamie

Supplier outreach agent · Waiting for your approval

Review the message, then approve, edit or reject it.

Getting started

  1. 01

    Set a daily cap

    Choose how many messages a mailbox can send. Send reservations prevent concurrent work from consuming the same remaining capacity.

  2. 02

    Allow space between sends

    Minimum spacing keeps a batch from leaving all at once.

  3. 03

    Choose local sending windows

    Set permitted hours for each day in the sender’s timezone.

  4. 04

    Keep warming separate

    Warming threads are distinguished from campaign mail and replies.

Keep exploring

See how it fits your work

Walk through your records, mailboxes and approval process with the Lineer team.

Book a demo