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

We’re excited to introduce a built-in

Fixed-Stage Domain Warmup

system to enhance your email deliverability and safeguard your sender reputation—particularly when using new or unseasoned domains.

Important:

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

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Automatic warmup for newly created domains

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Manual warmup activation for existing domains

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Smart warmup stage recommendation based on past sending activity and Google Postmaster data

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Fixed daily sending limits to ensure a safe ramp-up

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Full support for both agencies and sub-accounts for Leadconnector Email Sending domains

This warmup system employs a

fixed-stage model:

* Each stage has a

daily sending limit

* You will 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 advance

* Warmup

automatically pauses

once the daily limit is reached and resumes the following day

Note:

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

For Newly Created Domains:

Warmup is automatically enabled upon domain creation and verification.

You can manually enable warmup from the following locations:

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

Account 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.

Warming up your domain helps:

* Build trust with inbox providers like Gmail, Outlook, and Yahoo

* Improve inbox placement and reduce the risk of spam

* Ensure long-term deliverability success

Need help? Check out our Warmup Guide