New Feature Release: Fixed-Stage Email Warmup for Sending Domains

Modified on Wed, 4 Jun at 12:28 PM

We’re excited to introduce a built-in

Fixed-Stage Domain Warmup

system to help you improve email deliverability and protect your sender reputation—especially when using new or unseasoned domains.

Important: This feature is being rolled out in Laps(Beta Program). You’ll need to manually enable it to start using warmup for your domains.

What’s New

Automatic warmup for newly created domains
Manual warmup activation for existing domains
Smart warmup stage recommendation based on past sending activity and Google Postmaster data
Fixed daily sending limits to ensure safe ramp-up
Full support for both agencies and sub-accounts LeadConnector Email Sending domains

How It Works

This warmup system uses a

fixed-stage model

Each stage has a daily sending limit.
You'll progress to the next stage only after reaching the current day's limit.
No hourly caps are enforced.
Emails must be sent through the warming domain to move forward.
Warmup automatically pauses once the daily limit is hit, and resumes the next day.

Note: During this initial phase, sending above the stage limit is allowed and emails will not be blocked. However, future updates will strictly enforce these limits and block excess sends once the cap is reached.

How to Enable Warmup

For Newly Created Domains:

Warmup is enabled automatically after domain creation and verification.

For Existing Domains:

You can enable warmup manually from the following locations:

Account Settings:

Settings → Email Services → SMTP Service → Dedicated Domain and IP

When enabling warmup on existing domains, the system will recommend a starting stage based on historical email activity and available Google Postmaster data.