How to Warm Up an Email Account for Cold Email

If you’re going to send cold emails, you’ll need to warm up your email sender (SMTP). This guide will make it easy!

Why Do You Have to Warm Up Email Accounts?

Here’s the thing…

Cold email is not the most celebrated sales/marketing tactic.

Even if you have the most hyper relevant list and perfectly tailored copy, many folks will still see it as “SPAM” (though it is definitely not).

It’s just that after so many “Nigerian prince wanting to send you $10,000” scams, people have grown a bit sour on the idea of a cold email.

And with all those scams and fraud (which you’re not doing!), Google, Microsoft, SendGrid, and all ESP’s (email service providers) have increased regulations.

This isn’t to stop you from sending your hyper relevant cold emails, but to protect their users from phishing scams, and the like.

This presents a small (or large in some cases) roadblock to those of us running good ol’ fashioned value-driven cold email campaigns.

Basically, if you’re sending too much all at once, you will get flagged and your account will get banned by your ESP.

The solution is, simply, to warm up your email account.

This should be done for each email sender, it doesn’t cover the entire domain, and since Gmail and others use rotating IP’s, you need to make sure the email stays warm and the account looks natural.

Again, this is for protection and a necessary evil we all have to deal with if we want our emails to be safe and valuable.

How to Warm Up My Email Account?

Great question, and there’s a few answers.

At the end of the day it depends on the volume you plan on sending and the budget you have at your disposal.

I’ll go over the classic manual approach (takes a little longer and is a time investment), and I’ll go over the automated approach (works quicker, is more long-lasting, and saves a ton of time, but comes with a money investment).

Either way, this guide should be valuable for you if you’re just getting started on your cold email journey, or if you’re a hardened sales vet.

Warm Up Steps You Always Need to Do

Whether you’re going for the Manual method or the Automated method, there are a few things you should always do to maximize your email deliverability.

1. Verify Your Email Lists

Bounce rate is the number of invalid emails you send to. The higher your bounce rate, the worse your deliverability will be.

The best way to improve bounce rate (and deliverability) is to Verify or Validate your email list.

Get started by going to MailVerifier and sign up to get 100 credits free.

2. Set Up SPF, DKIM, and DMARC Records in your domain’s DNS settings

SPF, DKIM, and DMARC are the three security mechanisms that protect you from hackers, phishers, and help to avoid spam. ISPs treat these seriously, so before you start using your new email account for campaign sending, you need to set them up.

Learn how to set up SPF record here.
Read how to set up DKIM here.
Read how to set up DMARC here.

OK, now that that’s out of the way, let’s get into the fun stuff:

The Manual Email Warmup

If you’re short on cash and long on time, this is the method for you.

It’s fairly simple, but it can get a bit tedious if you’re an impatient person like me.

Here’s what you need to do:

1. Sign Up for Daily Newsletters

Newsletters are a great way to get your email account looking natural to your ESP immediately. It truly looks like you’re a normal person with no cold email plans in mind (hehe).

I recommend starting with newsletters that send daily like Robinhood Snacks and Morning Brew. Blogs like ActiveCampaign, Hubspot, and others also have frequent sending and are very common.

2. Send Emails to Trusted Contacts Who Will Reply

This doesn’t need much explanation, but the best way to make your account look natural is to send simple, non-sales emails to your network, friends, and family with the assumption that they will help you out and reply.

You can also send to your own alternate email addresses and reply manually to yourself, though I would make sure to mix it up.

Do this consistently for 5-7 days. Reply rate is a huge factor in email deliverability, ESP’s look at it as a key metric. If your emails don’t get replies, they’re more likely to be SPAM right? Makes sense.

3. Gradually and Consistently Increase the Volume of Cold Email Sends

While you’re getting replies from your trusted network and getting your valuable newsletters every day, you can start sending low volumes of cold emails, increasing the volume gradually, day-by-day.

There are many example schedules out there, but this has worked pretty well for us in the past:

Week 1: 25 emails/day
Week 2: 50 emails/day
Week 3: 75 emails/day
Week 4: 100 emails/day

Just keep increasing daily volume by about 5 emails per day, and keep a close eye on your reply rate and deliverability. This is a great time to test different small batch approaches to find what’s working for you.

Again, reply rate is a big deal, so make sure your emails (cold or not) are getting replies.

That’s it! You’ve successfully warmed up your email account and you’re sending cold emails that are bringing in new business, strategic partnerships, or whatever your goal may be.

However, as you can see, this manual process can get pretty annoying pretty fast.

I’m happy to tell you, there’s a better way:

The Automatic Email Warmup

If you’re like me, you want results yesterday.

Warming up your email sender(s) with the automatic method is quicker and less time intensive.

It does come with a cost, depending on how you go about it, but generally the time savings is more than worth it.

There’s many services out there with varying service levels and pricing. I’ll be focusing on the ones that I’ve tried personally and that have worked well for our clients.

Email Warm Up Services

Of course, if you’d like to spend more money and have a bunch of different softwares handling different things, I won’t stop you.

There are great solutions out there that are worth mentioning.

Includes email warmups as a part of the complete AI powered automation suite.

A fairly high priced solution that allows for more bulk warm up actions for situations with higher sending volume.

Bottom Line

Email warm up can either be your best friend or your worst enemy.

Again, if you’ve got time, the manual way will definitely work. If you’re a pro with a budget on a time crunch, then the automatic way is more reliable, faster, and lasts longer to make sure deliverability is as high as it can be.

No use sending emails that end up in SPAM right?

We’ve worked tirelessly to make sure that businesses, recruiters, and sales reps can maximize the use of their time to only focus on the highest value activities.

Share this guide.

Join the discussion.

✨ Free Cold Email Course

The secrets to cold email.

Get results with cold email and LinkedIn faster. It’s free.

Join our free 7-day cold email bootcamp and shortcut the process.

Everything you need to get started with cold email and outbound lead generation. 100% free.


Take the next step with the Master B2B Sales course.

Learn everything you need to get from a no-brainer offer to consistent closed deals

7-Day Free Trial

Give it a try for free. 100% risk-free.

Get access to 200 million+ business emails & phone numbers. Automate your cold email and LinkedIn lead generation.

❗️No credit card required