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How to Activate Email Warm-Up

Everything you need to know about Interceptly automatic warm-up

Written by Chall

At Interceptly, we’re focused on helping your emails land where they belong - in the inbox. That’s why every SMTP-connected email account comes with a built-in email warm-up, completely free. No extra tools, no extra cost.

This guide explains what it is, why it matters, and how to turn it on in just a few clicks.

What is Email Warm-up?

Email warm-up gradually builds your email sender reputation by sending small volumes of safe, automated emails. This helps inbox providers trust you — so your cold emails land in the inbox, not spam.

Do I need it?

Yes, especially if:

  • You’re using a new domain or email account

  • You send cold or bulk outreach

  • You’ve had deliverability issues

  • You want to protect your domain reputation

  • You want better open rates and replies

Included Free With Every SMTP-Connected Mailbox

You don’t need to buy or set up separate tools. Warm-up is built into Interceptly and activates automatically once your mailbox is connected via SMTP.


How to Activate Warm-Up

1. Go to the Mailboxes tab
In your Interceptly dashboard, open the Mailboxes section.

2. Choose your mailbox
Click the mailbox you've connected via SMTP.

3. Toggle warm-up ON
Flip the Warm-Up toggle to enable the feature.

4. (Optional) Adjust your warm-up settings
Default settings work great, but you can customise:

  • Emails per day (default = 20)

  • Ramp-up rate (default = 5 per day)

  • Reply rate (default = 30%)


Monitor Your Progress

You’ll see daily warm-up stats inside your dashboard. Hover over the warm-up chart to view email volume and activity over time.

Why is the warm-up left on?

Leaving warm-up running keeps your domain healthy. It helps maintain inbox placement by continuing to send safe, low-risk emails in the background, even after your campaigns start.

Can I add or remove mailboxes?

Yes. You can easily add or remove mailboxes in the app. If you need help, reach out via Live Chat.

🧑‍💻 Need help? Message us anytime through the purple chat icon in the bottom right. Our Success Team is always ready.

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