Email warm up is a process inboxes go through to gradually gain the trust of Email Service Providers or ESPs.
In order to protect their users from spammers and malware, ESPs use powerful algorithms to detect spam. Colloquially referred to as spam filters
, they scan incoming emails for any suspicious content such as spam words
, compare your domain to blacklisted email addresses
, and check for a lack of authentication
Failing any of these checks will send your email straight to spam, meaning your prospect never even reads your carefully crafted sales copy.
And a big red flag for these filters?
Low engagement with your address, meaning, sending out mass emails without receiving responses, is suspicious and very similar to what spammers do. As a salesperson or marketer, this is not your fault, especially as you’re first starting out.
You need to figure out your correct audience and you’re A/B testing your email copy. So, how do you prep your email to avoid being marked for spam when you first start your cold emailing campaigns?
By warming it up.
You need to create conversations that signal to ESPs that your email is not simply sending out emails without receiving responses. You can do this manually, by reaching out to colleagues or friends from other companies or departments that you know. This is slow-going but it will be extremely helpful.
Also, keeping a close eye on your lead lists and making your copy as hyper-personalized and specific as possible will help. After all, the better your copy and the more specified your ICP
, the more likely you are to receive a response.
Also, you want to start slow and build your way to mass sending. Start at 30 emails per day, go to 50 after a few weeks, and then keep increasing slowly to what your domain is able to accept. Some max out at 1000 emails per day or less.
But this may take some time as well.
Utilizing an email warm up tool
to send automated emails, which then are replied to and increase interaction over time to artificially warm up your domain. By utilizing a tool, the warm up period is significantly shortened from months to weeks.
This means you can start mass-sending a lot faster.
And in sales, time is money.
Email warm up tools saw great growth and popularity in the past few years, especially for the help they provided with email deliverability
In the last few weeks, however, some massive changes have rocked many of these developers.