If you're here - it probably means that you're looking for some cold email tools with the best email deliverability, personalization and features.

That's great!

In this article, we're going to show you the best cold email tools that, according to our research and testing, have the best email deliverability.

With them, your emails will never arrive in spam anymore.

What is email deliverability?

One of the most important aspects of a successful cold email campaign is email deliverability. No matter how attention-grabbing your email copy or your pictures are, your cold email campaign cannot be successful without following the best practices of email deliverability. Some would say that email deliverability is the make-it-or-break-it of any cold email campaign.

To answer the question in the headline, we first need to determine the difference between two similarly-sounding terms email deliverability and email delivery.

Email delivery accounts for when an email is successfully delivered to the receiving server. Email deliverability is when that email successfully lands in the inbox (or one of their folders/tabs excluding the spam folder and emails that bounced from the receiving server) of the person you have sent it to.

This might sound a bit complicated but trust me, it is not. Just look at this example:

Let’s assume you’ve sent out an cold email campaign to 200 recipients. Out of those 200 emails:

150 landed up in the recipient’s inbox

25 landed in the recipient promotions tab

5 landed in the recipient’s spam folder

15 bounced back and never made it to the recipient

Out of those 200 emails, 175 were delivered to the intended recipient. 175 out of 200 emails delivered should mean that your cold email campaign has a good email deliverability rate.

Simple, isn’t it?

Now that we have figured what email deliverability means, let’s take a look at 3 cold email tools that have the best email deliverability.

According to our research, the 3 best cold email tools on the market with the highest email deliverability rate are:

  • lemlist - only tool that allows you to personalize images, videos and landing pages in your cold email campaigns with amazing email deliverability.
  • Reply.io - cold email tool great for both outreach and drip campaigns
  • Outreach.io - cold email tool that's perfect for enterprise companies

We analyzed these three cold email tools with the best email deliverability using the same parameters and rated them from 1 to 5:

Email deliverability — Yes, it varies based on the tool you use

UX/UI — How easy is it to use the tool

Standout feature(s) — Are there any standout features? If there are, will they make your life easier?

Customer support effectiveness — How effective is their customer support?

Pricing — How much does each tool cost and does the price adhere to the industry norm

Full disclosure before we start with the review: We are building one of the tools mentioned on the list - lemlist. We identified some common problems that people using cold email tools run into and are building the best solution for our target audience. In this article, we are going to review our app as well as a couple of competitors honestly - while staying objective and without taking any sides. Like with other tools in this list, we will highlight lemlist's advantages and shortcomings.

Now let’s get started!


Like I previously mentioned, lemlist is our own tool but we are going to review it honestly just like the other tools on the list.

lemlist is the cold email tool perfect for sales, backlink building, recruiting, and similar business processes that use cold emailing. It is similar to some other cold email tools on the market, but it has a couple of very interesting features that no other cold email tool currently available has.

Why is lemlist great?

lemlist helps you build meaningful relationships with the prospects you send your cold emails to. The app also helps you get better open and reply rates.

What are lemlist's strengths?

There are a bunch of features and functionalities that make lemlist great and I am only going to highlight a few of them. (To see what other awesome features lemlist has, you will need to sign up for our free trial.)

lemwarm - improves your email deliverability our feature that allows users to send and receive emails from other lemlisters - our awesome users. Basically, by using lemwarm, you will warm up your email account automatically. Since your email account is connected to lemlist, we will send emails to other lemlisters using your account. The emails will contain uniquely generated content (each subject and message is uniquely generated using our smart content algorithm). Warming up your email with lemwarm helps you skip the spam folder thus enhancing your email deliverability.

Personalized images - helps you to build meaningful relationships with prospects Most other tools offer you to personalize your cold emails with first and last names, company name, and some other parameters, but lemlist offers you to create personalized images that have your prospect's website screenshot, name, logo, even their photo or any other data you want. Personalized images will build a closer bond with your prospects.

Here's how I'm using personalized images to introduce myself in cold emails:

Cold emails with this image receive over 80% open rates! Pretty amazing, right?

Personalized videos and landing pages In addition to personalized images, lemlisters that have our premium plan can also send personalized videos and create landing pages. These videos and landing pages build stronger relationships with prospects and even more improve replay rates which help lemlisters close more deals.

An email with a personalized video looks like this:

After the prospect clicks on the video with their name, they are redirected to a landing page that has their name and logo. It looks like this:

How cool is that?

Okay, now that we covered all great things about lemlist, let’s take a look at some of the downfalls and shortcomings.

What are some of lemlist's shortcomings?

A steeper learning curve Because lemlist is such a robust platform with all these great features, it takes a bit of time to learn the ins and outs of lemlist. However, after using lemlist for a day, you will get a hang of it.

The number of emails you can send per day is restricted Unlike most other email outreach platforms currently available, lemlist restricts how many emails you can send per day. With lemlist, you can send up to 100 or 500 emails per day. The number of emails depends on the package you choose.

This is not a disadvantage per see, because sending up to 500 emails per day gets you a great email deliverability rate. Also, since lemlist is mostly used by SMBs, up to 500 emails is just perfect.

If you go with some other cold email tool and start sending more than 500 emails per day, you will quickly loose your email deliverability and your emails will start arriving in spam.

How much does lemlist cost?

Every lemlist package comes with a 14-day free trial. After the trial is over, the users can choose between 3 plans:

  • The silver package is intended for solo entrepreneurs and costs $29/month
  • The gold package is $49 per user per month
  • The platinum is $99 per user per month

lemlist's ratings as a cold email tool

Email deliverability — 5/5

UX/UI — 4/5

Standout feature(s) — 5/5

Customer support effectiveness — 5/5

Pricing — 5/5

Total: 4.8/5


Reply.io is a sales automation and sales engagement platform. It is one of the more robust tools on the market as it packs a lot of features. It is used by companies such as WeWork, Dribbble, and Hubdoc.

Why is Reply.io a great cold email tool and what are some of its strengths?

A good tool for drip campaigns — Usually, not all sales outreach tools are good with drip campaigns. Reply.io is a rare exception. Even though it is not built do to that, it features some basic functionalities that can help you create retention or onboarding drip campaigns.

Reply.io has a great customer support/success team — Even though I believe lemlist's customer support is the best there is, I got to hand it to Reply.io. Whenever I could not figure out something during my test, they were there to help me out.

Learning how to use Reply.io is a breeze — If you are looking for a tool that is going to be easy to use by a wide range of people, Reply.io could be one of your options. Their help section is great, the app is eye-catching, and the user experience is intuitive.

As far as Reply.io’s email deliverability is concerned, just make sure you follow the usual practice and you most likely won’t have any trouble.

Where does Reply.io fall short?

It has a couple of unnecessary features — Adding a bunch of features just because you can do it doesn’t always end up well. While testing out Reply.io, I ran into a couple of project management features of Reply.io and I can’t quite figure out why are they there and why should I use them in the first place. This makes the entire experience a bit overwhelming especially since I’m already using a bunch of other project management tools.

How much does Reply.io cost?

Reply.io is a bit more expensive than the rest of the tools on this list. The cheapest plan for individuals is $70 per user per month. You can contact up to 1000 people per month. The most expensive plan is $500 per month for 10 users.

Reply.io’s ratings as a cold email tool

Email deliverability — 4/5

UX/UI — 5/5

Standout feature(s) — 4/5

Customer support effectiveness — 5/5

Pricing — 4/5

Total: 4.4/5


Outreach.io is a platform that helps your company engage prospects to drive more leads and close more sales.

If you are looking for a cold email tool for an enterprise company than Outreach.io might be your best choice. In short, Outreach.io is a similar tool to lemlist but it doesn't have all the features lemlist has.

What are some of Outreach.io’s strengths?

Like I already mentioned, Outreach.io is designed for enterprise companies which means you can expect some top-notch features built-in. Here are some of them:

Over 60 integrations — As you probably know, enterprise companies usually have a bunch of teams that use a bunch of various tools which is why it is expected that a tool like Outreach.io can be integrated with so many other tools. It is probably the email outreach tool with most integrations available. Outreach.io can be integrated with Intercom, Salesforce, and other similar tools. You will also find various other productivity, project management, and customer support tools that can be integrated.

A very robust platform — Outreach.io is probably the tool that has most features and functionalities out of all available cold email tools out there. Expect to find features like text messaging your prospects, follow-ups, and so much more.

As far as email deliverability is concerned, I have not had any problems during my tests. Outreach.io’s website has a great help doc about avoiding spam filters which is useful no matter the platform you use. Make sure you read it.

What are some of Outreach.io’s shortcomings?

It takes time to learn how to use it — Look at it this way: learning how to use Reply.io is very easy. Learning how to use lemlist is a bit harder, but learning how to use Outreach.io is so much harder. However, that is reasonable - Outreach.io is intended to be used by enterprise companies. So if you decide to go with Outreach.io be ready to spend a lot of your and your teammates’ time on learning how to use it.

It is very expensive — Enterprise tools usually cost a lot of money, and that is kind of expected. Their pricing is not available online, but the lowest package starts at $100 per user per month. Also, Outreach.io can’t be paid on a monthly basis, which means you are looking at spending $1200 per user for just the most basic features.

How much does Outreach.io cost?

As I already mentioned, their pricing is not available to the public. However, the most common answer to the question for this section’s title we could find is $100 per user per month. I also think that Outreach.io is available for 2 and more users which means you are looking at spending at least $2400. Yikes.

Outreach.io’s ratings as a cold email tool

Email deliverability — 4/5

UX/UI — 4/5

Standout feature(s) — 5/5

Customer support effectiveness — 5/5

Pricing — 3/5

Total: 4.2/5

So, what is the best cold email tool with great email deliverability?

Here we are at the end of this review. These 3 tools have the best email deliverability and are all great for a certain use-case.

If you are looking for a cold email tool that is simple to use, has great features and great email deliverability, Reply.io could be your choice.

If you are looking for a cold email tool for your enterprise company, Outreach.io could be a great choice for you.


If you are looking for a cold email tool that has more personalization options than others, like personalized images, videos, and landing pages that are all proven to be crucial in getting the best email deliverability rate on the market. then lemlist is THE right choice for you.

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