Explaining blockchain to your grandma has to be the second most difficult thing to do. Getting people to open your cold emails definitely takes the first spot.

At times, it even feels like you’re beating your head against a wall when you pour your blood and sweat into typing the perfect email and still end up with a low open rate.

Guess what, though? You can easily turn the tables around with good cold email software. However, the catch is how to find the best cold email software for your needs. Well, that’s what we’re here for.

In this blog, we’ll be introducing you to the ten best cold email marketing software. Mind you, the tools mentioned below only made it to this list after extensive research and testing on our end.

10 Best Cold Email Software for Startups in 2025

Cold emailing is an efficient and effective way for startups to get their foot in the door and make their name known. With the right cold email marketing software, you’ll soon notice significant improvements in your email marketing campaign!

1. Opps AI

Some might believe writing an AI cold email is a horrible idea. The truth is, it depends on the platform you’re experimenting with.

Opps.ai makes cold email outreach easy for businesses. Its AI assistant, Valet, helps you find the right prospects from a huge database. You can start by giving Valet simple commands, and it will craft the perfect cold email for you.

Valet also writes personalized email messages. The platform is designed for simplicity, so you don’t need technical skills or complex setups to get started. 

Opps.ai is the best cold email software for startups that want to connect with clients or investors quickly and efficiently.

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2. Mailshake

When it comes to simplifying cold email outreach, no one does it better than Mailshake. It takes care of personalizing email campaigns and follow-ups so you can focus on what matters more – generating leads! 

We particularly love its email sequencing and personalization tokens. The A/B testing feature is also another perk of using Mailshake to improve how your emails perform. 

The platform can cease sequences automatically as soon as prospects reply, unsubscribe, or bounce, leaving little for you to take care of. 

You can also include third-party apps on this platform to streamline your workflow. At $83 per month billed annually, Mailshake is one of the best cold email marketing software out there for small businesses.

3. Snov.io

Snov.io is a great cold email tool for startups to find leads and connect with them through emails or LinkedIn. It has a simple sequence builder that lets you set up automated drip campaigns and even allows for personalized follow-ups. 

You can also optimize campaigns using A/B testing for better results.

For growing teams, Snov.io allows unlimited email accounts. The software also has deliverability features, like email verification and email warm-up, to ensure your messages never get flagged as spam.

You can use Snov.io for personalized email campaigns to build meaningful and valuable relationships with potential clients. The starter package comes at only $30 per month, which is a fair price to pay considering the exceptional features it offers.

4. Apollo

Apollo has a database of a whopping 265 million+ contacts. It’s a name to remember when it comes to enhancing cold email outreach. Apollo helps you find and target the right leads based on your set criteria.

The platform uses AI to improve lead scoring and engagement to ensure that you connect with your ideal buyers. Apollo even supports outreach via email, calls, and LinkedIn. It also offers data enrichment, so your CRM’s data is always accurate and actionable.

For sales teams, Apollo provides tools like conversation intelligence and deal analytics to boost efficiency throughout the sales cycle. Its pricing is also accessible for small and medium-sized businesses.

5. Hunter.io

Hunter.io is the best cold email software if you’re looking for a user-friendly option. It helps you find, verify, and reach out to leads quickly.

Using its Email Finder and Domain Search, you can locate accurate contact information and avoid hard bounces with the Email Verifier.

Its simple campaign creator lets you set up automated email sequences with follow-ups.

Hunter is the right choice, even if you want the best free cold email software. It comes with a generous free plan that allows users to send campaigns to up to 500 recipients and invite unlimited team members. As for the paid plans, they start at $34/month only.

Hunter.io also integrates with CRMs like HubSpot and Close, so it’s a great choice for small businesses and freelancers. 

While it may lack advanced deliverability features, its affordable pricing and ease of use make it an excellent tool for those new to cold emailing or managing small-scale campaigns.

6. Saleshandy

Since you’re just starting out, it’s best if you test the waters first. And that’s when Saleshandy became the best cold email software. This powerful cold emailing tool offers unlimited sequences with personalized follow-ups. 

It supports A/Z testing (up to 26 variants) and email scheduling based on time zones to boost engagement rates. All you need to do is write an engaging cold email and let Saleshandy take care of the rest.

The highlight of this platform is its scalability. You can access unlimited email accounts by just paying $25 per month for the base plan. Saleshandy also has deliverability features like sender rotation and email warm-up. 

Businesses may use it to manage client outreach, generate leads with their B2B database, and analyze campaign performance with advanced reports.

As your team expands, you can upgrade to the Outreach Pro plan for $74 per month. The best part? Saleshandy is user-friendly, can be integrated with popular CRMs, and offers first-rate customer support.

7. Woodpecker

Woodpecker is a straightforward cold email software designed to help startups create, automate, and deliver email campaigns. The focus here is on simplicity and functionality, so you’ll have the best of both worlds.

What makes it stand out as the best cold email marketing software is its AI-powered email generation.

Yes, this means you can create customized emails by choosing text length, providing basic prompts, and selecting an appropriate tone. Imagine how much time you can save via an AI cold email!

The platform also offers essentials like automated follow-ups, email address verification to reduce bounces, and basic analytics to track campaign performance.

Startups can use Woodpecker to reach out to complementary businesses or influencers for collaborations. While its analytics are not as detailed as some competitors, Woodpecker is the best at keeping emails out of spam folders.

8. Instantly

Instantly is the perfect option for startups planning to scale their outreach in the near future. It offers unlimited email accounts and warm-ups, so it's super easy to manage growing campaigns.

With its clean interface and AI-powered lead management, Instantly simplifies campaign setup and execution.

Even on the Growth plan ($37/month), you can connect unlimited accounts and send up to 5,000 emails monthly. The Hypergrowth plan ($97/month) supports up to 100,000 emails. Isn’t that amazing? 

At this rate, you can count on Instantly for announcing new products and sending personalized campaigns for thousands of potential clients!

9. Close

Close is a practical choice for startups who don’t want to invest in cold emailing and a CRM software separately. With Close, you’ll get both under one roof. Besides its wonderful CRM platform, Close’s cold email automation is also quite advanced.

It has a user-friendly interface, which makes it perfect for beginners. You can build segmented contact lists, put them into workflows, and discover a plethora of options to drive sales and engagements via cold emailing. 

The platform also has a range of customizable sales email templates that you can use for quick and personalized outreach.

Their pricing structure is also perfect for small businesses. After all, $49 per month billed annually isn’t that bad of a deal for firms that are just starting out. 

10. QuickMail

QuickMail certainly lives up to its name as a quick solution to send cold emails and automatic follow-ups. Like the other best cold email marketing software in this list, QuickMail also offers inbox rotation and promises high deliverability.

However, what makes it stand out is its multichannel outreach capabilities. Advanced analytics can help you see the dos and don’ts of cold emailing. 

You can also capitalize on its AI-powered personalization and automation features to write an AI cold email that’ll definitely boost your open rate.

Even though QuickMail is a paid tool, it is surely among the best cold email software. You might want to try it out at only $49 per month and experiment with a 14-day free trial.

4 Tips to Choose an Appropriate Cold Email Software for Your Startup

1. Assess Your Needs

While all the abovementioned tools are the best cold email software, they are not a one-size-fits-all solution. What might work for you may not be the best option for another startup. 

For example, you might want the cold email software to win over a VC with cold outreach. Another company might need it to convert leads into loyal buyers. Figure out what you need before you make a decision.

2. Do the Research

There are hundreds of cold emailing software out there, and all of them claim to be the best. 

So, you must do your own research and decide which options fit you the best. You can use the list above as a good starting point.

3. Figure Out Your Budget

Startups often have to operate on a tight budget. 

Hence, it’s best to identify how much you can spare for cold email software so you can narrow down your options accordingly.

4. Test the Software

The good thing about the best cold email software is that it comes with a free trial. This will allow you to test if the tool is the right fit for your requirements. 

If not, you can easily cancel your subscription before the free trial ends, and you won’t be charged a cent!

Opps AI to the Rescue!

We understand it can be tough to decide when there’s a sea of choices for the best cold email software. But with Opps AI, you’ll get a blend of the best. It’s an easy-to-use, cost-effective solution for businesses looking to improve their cold emailing campaigns.

Opps AI can help you access high-quality contact information, write personalized messages for clients, create email and LinkedIn campaigns, and more by just sending simple commands. Isn’t that amazing?

If your startup is struggling with cold email marketing, it’s time to give Opps AI a chance, and you’ll soon notice the difference!