Tools :: List Warming

ReachMail's List Warming tool gradually warms lists over 50,000 records to build a positive sender rep.

ReachMail’s List Warming tool helps you gradually increase sending volume for lists over 50,000 contacts, building a positive sending reputation. It segments your list and spreads sends over time, following best practices. This feature is available on Pro plans only.

• Go to Tools → List Warming
• Select your list (must have over 50,000 contacts)
• Choose your mailing content
• (Optional) Add a suppression list
• Select your warming schedule
• Click Save and Continue

After selecting your list, you’ll move on to choosing the mailing content. This page displays all available mailings in your account.

• Select the mailing you want to use
• Click Save and Continue to proceed

Next, you’ll reach the Suppression List page. This step is optional and only needed if you want to exclude certain recipients.

• To use a suppression list: select the list and click Save and Continue
• To skip: just click Save and Continue without selecting a list

The last section you'll need to fill out is the Warming Schedule. The warming schedule determines how fast you warm your list.

The warming speed options you're able to select are:

• Slow: Warm a list by increasing the daily delivery amount by 10%.
• Moderate: Warm a list by increasing the daily delivery amount by 20%.
• Quick: Warm a list by increasing the daily delivery amount by 30%.
• Custom: Select your own custom starting volume and percentage increase.

Warming email traffic for a domain or IP address depends on many factors including recipient interest, data hygiene, sender score, and more. Senders are encouraged to prioritize quality and engagement over speed.

On the List Warming page, you’ll also see additional details about your list:

• Provider Intelligence Report: Shows which email provider handles each domain. Useful for understanding delivery differences.
• Warnings: Alerts if many addresses are hosted on the same provider network.

Finally, set:

• Special Instructions: Option to Skip Weekends for deliveries.
• Start Date: Choose the day and time to begin your list warming.

Click Begin Warming Campaign to start the List Warming process. Once the start date arrives, campaigns will send automatically. Monitor your reports to track progress and ensure positive results.

List warming is not a one size fits all solution. Contact us to discuss your list warming strategy and hear what we advise given the specifics of your business. If you would like to learn more about list warming best practices, click here.