Cold Email Software: The Best 15 Tools to Crush Your Outreach in 2025

Cold Email Software: The Best 15 Tools to Crush Your Outreach in 2025

While the way businesses sell and customers purchase has drastically changed over the past few years, what has remained the same is email being the most popular form of communication between them. 

The nature of cold emails has also changed, shifting from generic mass outreach to more targeted and personalized, prioritizing creating a positive buyer experience over pushing for the sale. 

As a result, cold email software has changed along the way to accommodate these shifts, with functionalities now going far beyond basic email automation—deliverability, AI features, personalization, and the list goes on. 

Moving into 2025, cold emails are just as crucial as ever, an indispensable element of modern sales and marketing strategies. In this article, we’ll help you navigate the best cold email software in the market to help you make the most informed decision.

What makes the best cold email software? 

Before diving into our list of the top cold email tools, it’s definitely worth first mentioning what you may want to keep an eye out for when choosing your new software. 

Depending on your specific use case, you may want to prioritize sales-focused or marketing-focused tools to supercharge your team, but in any case, here are the core features you’ll definitely want to consider: 

  1. Automation →  well, obviously, but it comes in different forms, and while the basic cold outreach tools offer basic automation, other tools take it a step further with conditional sequences and drag-and-drop campaign builders, just to name a few. 
  2. Personalization → if you’re in sales or marketing, there’s no need to stress the importance of crafting personalized, meaningful messages to your email recipients, so invest in a tool that offers advanced personalization features. 
  3. AI → harness the power of AI to craft engaging subject lines, optimize send times for better engagement, and leverage prospect/company data to tailor each and every message for every potential buyer, even in mass campaigns.  
  4. Multichannel → email is king, but if you’re looking to really maximize your outreach efforts then it’s definitely worth combining it with other communication channels like LinkedIn, SMS, and perhaps even calls, so prioritize opting for a multichannel cold outreach tool. 
  5. Deliverability → the email giants like Gmail and Yahoo significantly ramped up their security policies in 2025, which is why email deliverability has become imperative for all businesses, so definitely make sure your cold outreach tool has the necessary features to ensure your emails land in your recipients’ inboxes. 
  6. Integrations → to make the most of your cold outreach tool, there comes a time when you’ll want to integrate it with a CRM, sales intelligence, lead database, or other software that businesses have in their digital ecosystem, so just double-check that it’s compatible with your existing stack.  
  7. Reporting → to avoid another integration (and the subscription cost), opt for cold outreach tools that have native reporting and analytics to track the performance of your outreach campaigns, conduct A/B tests, and see what works and what doesn’t.
  8. Ease of use → sales and marketing professionals use cold outreach tools every working day, probably more often than any other type of software, and given the complexity of mass email campaigns, prioritize tools that are easy to use and navigate (thankfully, most of them have free trials). 

15 best cold email outreach software

Let’s cut to the chase—what are the best cold outreach tools on the market? 

Well, we’ve got 15 for you, but which one of them is the best for your business will mostly depend on what you’ll be using it for. 

For reference, you have your dedicated email outreach tools, and then you have your sales and marketing suites that have equally good outreach capabilities only with numerous more features to enjoy. 

We always recommend opting for the more consolidated, sales or marketing automation platforms because, while you’ll pay a bit more, you will most probably get a better ROI by supercharging your email outreach with other communication channels, data intelligence, analytics, deal management, and the list goes on.

Reply.io 

G2: 4.6/5⭐️ | Capterra: 4.6/5⭐️

We’ll kick things off with our very own Reply.io—an AI-powered outreach platform with features spanning across the entire sales cycle, from finding targeted prospects to closing deals. 

Reply began its journey as a dedicated email outreach platform, but over the years continuously incorporated new features that now transformed it into a true sales automation suite, empowering users to engage their buyers more effectively than ever before. 

With our state-of-the-art AI SDRs, users can automate their entire email outreach with peace of mind while they craft hyper-personalized email messages and follow-ups based on relevant prospect and company data, making each interaction meaningful and relevant. 

On top of that, Reply users can build targeted prospect lists with our native lead database,  and supplement their email outreach with LinkedIn, SMS, calls, and WhatsApp while leveraging conditional sequences, which means that the content, timing, and channel for each interaction will depend on the behavior of each unique prospect in real-time. 

Main features: 

  • Personalized email writing at scale with AI  
  • Multichannel outreach sequences 
  • Premium email deliverability tools 
  • Native contact database with 1 billion contacts
  • Analytics and reporting 

Pricing: free 14-day trial, plans start at $49/month.

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Smartlead.ai

G2: 4.6/5⭐️ | Capterra: 4.3/5⭐️

smartlead, best cold email software

Smartlead.ai is a great cold outreach tool for those looking for simple email automation with an emphasis on email deliverability. It’s designed to effectively scale cold email campaigns with simplicity at heart while ensuring top-tier email deliverability across the board with authentication, automated warm-ups, and mailbox rotation. 

With its neat centralized inbox, teams can centralize all their communications under one roof, making it easy to manage leads and ensure timely follow-ups. There aren’t any extra features to improve your sales or marketing campaigns, but it seamlessly integrates with numerous CRMs and other platforms with its powerful APIs. 

Main features:

  • AI-powered personalization 
  • Unified master inbox 
  • LinkedIn messaging 
  • Automated email warm-up functionality

Pricing: free trial available, paid plans start at $39/month.

Hunter.io 

G2: 4.4/5⭐️ | Capterra: 4.6/5⭐️

hunter.io, cold email software

Hunter.io is primarily an email finder and verification tool, though it also has basic functionality to automate email campaigns without switching between apps. 

With personalized textual variables, Hunter.io users can leverage the extensive data available in the tool to create tailored messages at scale, along with its pretty neat intent signals feature, which alerts you when your prospects show purchase-ready behavior. 

Ideal for sales and marketing teams to build targeted prospect lists, Hunter.io can also be used to manage email campaigns for businesses that don’t require other sales- or marketing-related features like multichannel outreach or conditional sequences. 

Main features:

  • Email finder and domain search
  • Basic personalization variables 
  • Bulk email verification
  • Campaign management with basic tracking

Pricing: Free plan available with limited features, paid plans start at $35/month.

Mailshake 

G2: 4.7/5⭐️ | Capterra: 4.6/5⭐️

mailshake, best cold email software

Mailshake is built for simplicity and power, catering to sales teams, recruiters, and marketers who want to engage leads through cold email campaigns. With its very clean and intuitive interface, this tool makes it quite easy to launch your email sequences without worrying about the learning curve. 

On top of automated emails and follow-ups, users will also enjoy a data finder for driving email personalization, LinkedIn automations and call dialer for multichannel outreach, and last but not least, email deliverability tools to ensure safe and sustainable communication. 

Mailshake also has an AI email writer which, as you guessed it, crafts personalized and compelling emails designed to convert prospects into buyers, without sacrificing the quality of the message. 

Main features:

  • Automated email sequences with multichannel follow-ups
  • AI email writing assistant
  • Email deliverability tools
  • Data finder 

Pricing: Free plan available, paid plans start at $49/month.

lemlist 

G2: 4.5/5⭐️ | Capterra: 4.6/5⭐️

lemlist, cold email software

lemlist is your classic cold email outreach software with features ranging from a native database to multichannel outreach and AI personalization. 

Moreover, lemlist offers users numerous email deliverability features like automated warmup, a centralized inbox, and conditional sequences. 

With its new AI, lemlist users can enjoy advanced personalization at scale with dynamic elements, including text, images, and videos, though it won’t handle replies on your behalf like Jason AI

We’ve recently written a more detailed lemlist review for those interested, covering its core functionality, user reviews, and pricing plans.  

Main features:

  • Multichannel outreach with LinkedIn 
  • Personalized text, images, and video outreach
  • Email warm-up for email deliverability
  • Lead database 

Pricing: Free trial available, paid plans start at $32/month.

P.S. watch how lemlist compares to Reply.io!

Close CRM

G2: 4.7/5⭐️ | Capterra: 4.7/5⭐️

close crm, best cold email software

Close is a fully-fledged CRM solution, but it made it on our list due to its pretty near built-in cold email capabilities, making it a one-stop shop for businesses looking for both a cold email tool and a CRM. 

This platform is great for managing all prospects and deals beyond engagement, while its robust reporting ensures that teams can track their outreach campaign performance. 

If you’re looking for a dedicated outreach tool and/or already use a CRM in your business, this is probably not the option for you, but otherwise, a very good tool. 

Main features:

  • Email sequences with automated follow-ups
  • Lead management and pipeline tracking
  • Sales AI for crafting humanized messages 
  • Multi-channel outreach capabilities 

Pricing: Free trial available, paid plans start at $49/month.

Apollo.io 

G2: 4.8/5⭐️ | Capterra: 4.6/5⭐️

apollo.io, cold email software

Apollo.io is an all-in-one sales automation platform that covers the entire sales cycle, from lead generation to deal management and beyond. Apollo.io is mostly known for its extensive lead database with over 250 million contacts, who can then be easily engaged within the platform. 

When it comes to email outreach, this platform makes it easy to create complex, multichannel sequences for all your unique customers, along with in-depth analytics to track each campaign’s performance. 

Overall, Apollo.io is a solid outreach tool that also offers numerous features to empower sales teams, though, compared to Reply.io, it still lacks in several areas like AI and deliverability. 

 Main features:

  • Extensive B2B contact database
  • Automated email campaigns with dynamic personalization
  • Multichannel outreach 
  • Real-time tracking of email opens and replies

Pricing: Free plan and trial available, paid plans start at $49/month.

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Woodpecker.co

G2: 4.3/5⭐️ | Capterra: 4.5/5⭐️

Woodpecker, cold email software

Woodpecker.co is another one of those tools that if you’re looking for simple email outreach automation, no more no less, it’s definitely a solid choice. 

This tool focuses on simplifying, automating, and personalizing email campaigns while maintaining high levels of deliverability. Its unique “reply detection” system ensures that follow-up emails are only sent when necessary, preventing users from ever spamming their prospects.

The platform is incredibly user-friendly and offers several simple personalization options and A/B testing to maximize engagement and reply rates. 

Main features:

  • Personalization at scale with dynamic fields
  • Smart reply detection to prevent unnecessary follow-ups
  • A/B testing for campaign optimization
  • Email deliverability tools including warm-up

Pricing: Free plan available, paid plans start at $29/month.

Yesware

G2: 4.4/5⭐️ | Capterra: 4.3/5⭐️

yesware, best cold email software

Yesware is a lightweight cold email tool built, primarily designed for sales teams that are looking to streamline their outreach with prospects. 

Designed as a Gmail or Outlook extension, this software integrates directly into your inbox which makes it quite easy to use. 

Yesware includes emails and cloud calls, advanced email tracking, basic prospecting, simple analytics, and built-in email templates to give users a full bang for their buck.  

This is definitely a cold outreach tool for individual professionals or small teams that don’t need any premium features like AI and sales intelligence.  

Main features:

  • Automated email sequences 
  • Email tracking with insights into opens and clicks
  • Library of customizable email templates
  • Dashboard analytics for performance tracking

Pricing: Starts at $15/user/month. Free trial available.

QuickMail.io 

G2: 4.7/5⭐️ | Capterra: 4.7/5⭐️

quickmail, cold email software

QuickMail.io is built for small teams that value simplicity and efficiency in their cold email outreach. The platform focuses on email deliverability, offering several tools that ensure your emails reach the right inboxes. On top of that, they have a special agency plan with dedicated features for sales or lead generation agencies. 

Simple and straightforward, QuickMail automates emails and follow-ups with ease, while also offering basic analytics and A/B testing to refine outreach strategies. Another standout feature is their ‘auto-detect’ system, which ensures that follow-ups are never sent to unresponsive or uninterested prospects to maintain low spam rates. 

For teams looking to streamline their email outreach without any overwhelming complexity, QuickMail is a solid option.

Main features:

  • Automated emails and follow-ups 
  • Email warm-up and deliverability tools
  • Seamless integrations with CRMs and other tools 

Pricing: Free trial available, paid plans start at $49/month.

SmartReach.io 

G2: 4.6/5⭐️ | Capterra: 4.7/5⭐️

smartreach, cold email outreach software

SmartReach.io is another sales-focused outreach platform that combines emails, LinkedIn messages, and calls to engage buyers. Campaign setup is pretty easy, and they have an AI that can take care of all the writing, without sacrificing personalization. 

As with most other tools, email deliverability is a big part of this platform, offering features like automated warm-up, spam tests, and inbox rotations. 

Overall a pretty solid tool for cold email outreach, but if you’re looking for more features to supercharge your sales team, tools like Reply.io and Apollo would definitely be better choices. 

Main features:

  • Automated multichannel outreach 
  • Advanced email deliverability tools
  • AI email writer 
  • Performance analytics for continuous improvement

Pricing: Free trial available, paid plans start at $29/month.

Instantly.ai  

G2: 4.8/5⭐️ | Capterra: NA

instantly, best cold email software

Instantly.ai is a relatively new player in the cold email space but has already established a solid reputation for its ease of use and features. Designed for high-volume email campaigns, this platform offers a native lead database, premium email deliverability features, and website visitor tracking for inbound efforts.  

With its AI engine, Instantly.ai can completely take care of all your emails and follow-ups, leveraging data from its database or your integrated CRM to create meaningful, humanized messages. 

Instantly.ai is another tool that we’ve recently written a detailed review of, so check it out if you want to learn more about this product. 

Main features:

  • Simple email campaign management for high-volume sending
  • AI-powered copy suggestions and analytics
  • Email warm-up and reputation monitoring
  • Native lead database 

Pricing: Free trial available, paid plans start at $30/month.

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Overloop 

G2: 4.4/5⭐️ | Capterra: 4.0/5⭐️

overloop, cold email outreach software

Overloop (formerly Prospect.io) is a cold email and sales automation platform designed for teams seeking simplicity and efficiency. It has a neat drag-and-drop sequence builder that allows users to create complex outreach workflows in a matter of minutes. 

Overloop is particularly well-suited for businesses that are more focused on their prospecting rather than outreach efforts, given its numerous features aimed at identifying leads and relevant data points. 

This data is then leveraged by Overloop to craft personalized emails on autopilot, freeing up time for sales reps to focus on the more high-level tasks.  

Main features:

  • Intuitive drag-and-drop sequence builder
  • Personalization with dynamic fields
  • Analytics to monitor campaign performance
  • CRM integrations to streamline workflows

Pricing: Custom pricing, you’ll need to talk to their sales.

GMass

G2: 4.8/5⭐️ | Capterra: 4.8/5⭐️

gmass, cold email outreach software

As the name slightly gives away, GMass is a cold email powerhouse built directly into Gmail, making it one of the most accessible and easy-to-use tools for small teams and individuals. 

Its simplicity lies in how seamlessly it integrates with Gmail, transforming your inbox into a robust cold email marketing platform. Users can easily create personalized campaigns, segment their audience, track performance metrics, and schedule follow-ups.

It’s simple, it’s affordable, it’s functional. If you’re looking for the most low-tech cold email marketing software that still works well to automate your email outreach—look no further. 

Main features:

  • Email campaigns directly from Gmail
  • Automated follow-ups based on recipient behavior
  • Real-time tracking for open, click-through, and reply rates
  • Simple yet effective list-building tools

Pricing: Paid plans start at $18/month for individuals, and $120/month for teams.

Klenty 

G2: 4.6/5⭐️ | Capterra: 4.6/5⭐️

klenty, cold email outreach software

Finally, Klenty is another lightweight sales engagement platform designed to simplify cold email outreach for sales teams. It offers additional channels like LinkedIn and cloud calls to improve engagement rates, along with robust automations like its cool drag-and-drop campaign builder. 

One of Klenty’s main standout features is its ‘Playbook’ functionality, which empowers users to create customized workflows based on their prospects’ behavior, ensuring a personalized experience for all potential buyers. 

Main features:

  • Multi-step email, call, and LinkedIn sequences
  • Customizable templates and behavior-based sequences
  • Detailed reporting and campaign insights
  • Powerful call dialer with AI 

Pricing: Free trial available, paid plans start at $50/user/month. 

The future of cold email marketing software

Hopefully, this article inspired you to find the best cold email marketing software for your team. 

Looking forward, cold email automation software will only keep getting more impressive with the rise of AI. Most of these tools already write pretty impressive and humanized emails on your behalf, but soon they will even be able to lead entire back-and-forth conversations. 

At the same time, more and more standalone email outreach tools are adding new features to stay competitive, whereas sales and marketing platforms are increasingly developing their outreach capabilities, 

As a result, competition will continue to be fierce, and more businesses will slowly shift towards those tools that offer the best AI functionality. 

On this final note, we kindly invite you to give Reply.io a free try. If you’re looking for a powerful tool that will automate email outreach, leverage data and AI for personalization at scale, and ensure email deliverability stays healthy at all times, I’m sure we’ll be a great fit!

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