How to warm up a custom tracking domain

In this article, you’ll learn how to automatically include your custom tracking domain to the email warm-up process.

Even with a custom tracking domain, using open and click tracking in email campaigns can lower deliverability, as providers may flag these emails as suspicious.
Snov.io recommends using tracking only when necessary for your sequence or reporting, and with a custom tracking domain. In all other cases, disable tracking to protect your sender reputation.

To improve deliverability and minimize the risks of tracking, warm up your custom tracking domain. In our Email Warm-up tool, you can enable tracking domain warm-up as part of the automatic process.

Custom tracking domain warm-up benefits

• Safer tracking: Domain warm-up helps build trust for your tracking links and ensures they don’t hurt deliverability when used in campaigns.
• Better deliverability: In campaigns that use warmed-up tracking domains for open or click tracking, emails look less suspicious to spam filters.

How custom tracking domain warm-up works

When you enable warm-up, Snov.io automatically adds a link with your tracking domain to the email content. The tracking domain URL is pulled from the settings of the email account being warmed up. By being included in the content, the link and the tracking domain gain positive reputation.

How to enable custom tracking domain warm-up

Custom domain warm-up requires the domain to be connected to your email account. Make sure it's added to the same account you want to warm up.

Open the settings of an existing warm-up (or create a new one).

For accounts already in warm-up, you don’t need to create a new one — just edit the warm-up settings. After you enable this option, all emails sent during warm-up will include a link with your tracking domain.

To enable domain warm-up, go to the Email content step in the warm-up settings, scroll down to the Custom tracking domain option, and toggle it on.

Custom domain warm-up and plain text

Plain text supports only text. Adding a tracking domain link turns the email into HTML. To warm up in plain text, keep custom tracking domain warm-up disabled.

Domain warm-up works in both AI-generated and Specific content types, but it can’t be used together with Plain text mode in the same warm-up. If you want to use both, set them up separately.