Spread Sending allows you to gradually distribute your email campaign over a specified time window, rather than sending all emails simultaneously. This prevents deliverability issues that can occur when large email batches overwhelm sending infrastructure or trigger spam filters, especially for high-volume campaigns or newly warmed domains.
Spread Sending mimics human-like sending patterns, significantly reducing the likelihood of being flagged by anti-spam algorithms and ensuring campaign deliverability.
This guide will walk you through enabling spread sending for your campaigns, selecting the optimal delivery window, and monitoring your campaign's progress to improve your overall email deliverability performance.
Additionally, it explains how this feature helps avoid spam filters by mimicking natural sending behavior.
Before You Begin
Before using spread sending for your campaigns, make sure you have:
Campaign content ready: Have your email template, subject line, and all campaign content prepared before starting the setup process.
Contact list finalized: Ensure your recipient list is complete and properly segmented, as spread sending works best with larger contact volumes.
Campaign scheduling flexibility: Have flexibility in your campaign timing since Spread Sending extends the total delivery time.
Step-by-Step Instructions
Access Settings
Click the profile icon in the top navigation bar.
Select Settings from the drop-down menu.
In the Settings menu, go to Add-ons.
Find Spread Sending and toggle the switch to enable it.
Configure Newsletter Campaign
In the navigation bar, click on Campaigns.
From the drop-down, select Newsletters
Locate the newsletter you want to modify and click the three dots next to it.
Click Edit to open the campaign editor.
Schedule Spread Sending
In the Campaign Editor, click "Schedule" from the navigation path.
On the scheduling page, check the box for Spread Sending.
In the form, set the desired time in the Spread Over field (e.g., 2 hours, 1 day).
You’ll now see updated details showing:
Total contacts
Sending rate
Estimated completion time
In the confirmation modal, click Submit.
You will now see the updated status for your campaign.
Your campaign will be sent gradually using the Spread Sending feature.
Tips & Best Practices
Here are some helpful ways to make the most of Spread Sending for better deliverability:
Use spread sending for newly warmed domains: This feature is especially valuable if you're building sender reputation or using a recently authenticated domain.
Monitor real-time progress: Regularly check the Campaign Analytics dashboard during the send window to catch any issues early.
Test different spread durations: Experiment with various time windows to find what works best for your audience and sending volume.
Combine with other deliverability practices: Use spread sending alongside domain authentication and list cleaning for maximum effectiveness.
Plan campaign timing accordingly: Remember that Spread Sending extends your total delivery time, so plan your campaign launch earlier.
Leverage automation for cold outreach campaigns: Automate the sending process for cold email outreach, ensuring timely and consistent engagement with leads.
Warm-up your domain before large campaigns: Gradually build domain credibility to avoid spam filters and ensure successful email delivery.
Troubleshooting Common Issues
Spread sending involves timing and delivery coordination, so here are solutions to common concerns:
Problem: "I don't see the spread sending option in my campaign schedule section."
Solution: Ensure you've enabled the Spread Sending add-on in Settings > Add-ons before creating your campaign. The option only appears for campaigns created after the add-on is activated.
Problem: "My campaign seems to be sending slower than expected during the spread window."
Solution: This is normal behavior. The system automatically divides your recipients into even batches over the selected time window. Check the Campaign Analytics dashboard to see the real-time progress and confirm emails are being sent steadily.
Problem: "I want to stop or modify the spread sending once it's started."
Solution: Once a spread sending campaign begins, you cannot modify the delivery window. However, you can pause the entire campaign if needed. Plan your spread duration carefully before launching.
Problem: "The analytics dashboard isn't showing real-time updates during spread sending."
Solution: Refresh your browser and wait a few minutes for the data to update. Real-time analytics may have slight delays, but should show progress throughout the send window.
Problem: "My spread sending campaign completed faster than the selected duration."
Solution: If some recipients have invalid email addresses or other delivery issues, the system may complete the campaign earlier than expected. Check your campaign analytics for any bounce or delivery failure information.
Related Articles
Now that you're using Spread Sending to improve deliverability, explore these ways to further optimize your email performance:
How to Warm Up Your Email Domain for Better Deliverability: Learn about combining warm-up with spread sending for newly authenticated domains to maximize deliverability benefits.
How to Clean Your Email List and Improve Deliverability: Discover how to clean your contact lists before using spread sending to ensure optimal delivery rates.
5 Email Deliverability Best Practices: Learn essential deliverability practices that work hand-in-hand with spread sending to ensure your emails reach their intended recipients.