What is Email Warming

Email warming is the process of building trust with email service providers (ESPs) for your new email address to improve deliverability. If your email address isn’t “warm,” a larger percentage of your emails may end up in the spam folder.

Email Warm-Up vs. IP Warm-Up: What’s the Difference?

For most cold emailers, IP warming isn’t a major concern. Custom sending IPs are only needed when sending high volumes of emails, which most cold email campaigns don’t reach.

When using a new domain with G Suite or Outlook, your emails will be sent from their IP addresses. ESPs are cautious about allowing mass emails from their IPs to prevent spam. So while IP warming isn’t a structured process, the same principles apply as email warming. If your outreach emails get replies and engagement, you’re less likely to be flagged as spam.

Why Warm Up Your Cold Email Inbox?

Even if your cold emails make it to your prospects’ inbox, getting replies can be challenging. If your emails are flagged as spam, your chances are even slimmer.

Warming up your email improves deliverability, increasing the likelihood that prospects will see your emails, respond, and ultimately drive more revenue from your campaigns.

It’s especially important to use a separate email address for cold outreach. For instance, if your primary email is first_name@domain.com, you could use first_name@domain.io for cold emailing. This way, if issues arise—such as blacklisting—it won’t affect your main communication channels with clients and your team.