Published on May 15, 2025

Best Cold Email Software for 2025: Feature Breakdown & Real User Reviews

Daniel Shnaider
10 min read

Find the Right Cold Email Software Tool To achieve an Advanced Sales Engagement Platform!

Cold emailing is a battle, you either survive or you thrive. And just like many battles, having the right skills, weapons and strategy can make all the difference.

However, with tons of cold email software tools options in the market it can be difficult to simply skim through the entire deliberation process as it will be too tedious, nor can you just blindly select one. 

So how can you choose one?

We’ve done the research and determined the best cold email software for 2025 from this guide.

The article will broach features and other factors — cold email automation capabilities, sales engagement platform, and ease of developing the ideal email marketing campaign— to help you make a decision without scoping in the dark. 

The following article will also uncover some potential use cases and opportunities and will highlight which ones are the best for your specific business needs. Whether you’re a startup, an SDR team, or a freelancer, we’ve got you covered.

We’ve ranked these tools based on the following criteria:

  • Ease of use
  • Providing email outreach without compromising on other channels
  • Features (e.g., email warm-up, deliverability, multi-account management)
  • Integration with other tools (CRMs, analytics, etc.)
  • Overall as the best sales system and a powerful cold email platform.

The 9 Best Cold Email Software Tools in 2025

Here’s a breakdown of the top 9 best cold email software options for 2025, based on feedback, features, and their specific use cases to perfect your cold email sequences. 

AnyBiz

Website homepage featuring text: Hire AI Sales Agents to generate meetings and sales for Any Business. Includes a call-to-action button and a partial screenshot of a dashboard. Various logos of companies are displayed at the bottom.

 Features

  • Highly intelligent AI sales agent with multichannel outreach capabilities (email, LinkedIn and AI Cold Call), but does not compromise on each channel.
  • Large database of over 400 million prospects
  • Email deliverability capabilities using Adeline AI
    • Personalized Warm-up Plan
    • Optimal Sending Times Prediction
  • Spam Risk Detection
  • Seamless email follow-up procedure
    • The AI agent will generate the designs automatically giving you the proper edge to showcase your unique selling proposition.
    • Can send your prospects a customized landing page of your business.
  • Email Classification that can determine if the prospect is:
    • This classification will also help the AI agent determine the level of response they need to engage with your prospect, and craft cold emails while ensuring that it makes sense.
      • Interested
      • Has Buying Intent
      • Meeting Intent, or is eager to schedule a meeting.
      • Needed Follow Up.
      • Already Request for a Price
      • Requesting for Information
      • Already Comparing Competitors
      • Uses Competitor
      • Referral
      • Already gave you a Positive Feedback
  • A/B Testing Simulation for Email Campaign Optimization

Note: Although AnyBiz does not offer direct A/B Testing you can still simulate its principles by creating several similar “Personas” with slight variations in its parameters — target audience segments, industry focus, job titles, location and company size. 

  • Multiple features for every business needs 

Ideal for: Every industries, sales leaders, sales personnel and agency owners for sales engagement

Why it’s Great

  • Perfect for a multichannel outreach tool — not just email.

     

    • You can scale your outreach depending on what you think is more effective.
  • Email deliverability capabilities with Adeline AI to ensure optimal email health
  • Provides a next-level automation tool. 
  • Personalized cold email to improve engagement, to ensure that your emails will not sound too robotic or generic
  • Email Classification and automation, to improve engagement level
  • Customized landing page for follow-ups giving your prospects that your business are operating over a higher level

Warmy.io

Features

  • Advanced Email Deliverability Capabilities
  • Email Seed Lists
  • Free Tools
  • Customization of warmup distribution across GSuite, Gmail, M365, Outlook, Yahoo, and even Private SMTP.
  • Set warmup settings for all your email accounts and mailboxes at once—or even one by one, whichever you prefer.

Ideal for:  Warm-up, email outreach, and for small, medium to large businesses.

Why it’s Great

  • Warmy’s free email deliverability test, critical for evaluating email reputation and ensure your emails are within the ideal health.
    • It gradually increases email volume preventing sudden spikes that could trigger mail server rejections.
  • Simulates human-like interactions  to ensure emails are opened, replied to, and marked as important.
  • Monitoring email reputation to identify potential issues before they impact campaigns.
  • Warmy’s advanced seed lists are genuine email addresses that simulate real human behavior. Emails are opened, read, scrolled through, and clicked, further reducing the chances of landing in spam. Plus, if emails go to spam, they are manually removed and marked as important to improve future deliverability. You can check out Warmy’s seed list usage guideline
    • Purchase and Download: You can acquire the seed list from Warmy and download it:
    • Create a Campaign: After downloading the seed list, you can integrate it into your email client and create a campaign specifically targeted to these email addresses.
    • Send: Send your campaign to the email addresses included in the seed list.
    • Analyze and Optimize: Warmy provides constant updates on its seed lists, bringing in new email addresses, and providing detailed reports on your seed list campaign performance. You can leverage these insights to refine your email strategy, improving deliverability across the board.
  • Can quickly check if your emails reach the intended recipients and shows the percentage of emails that ends
    • Spam
    • Promotions
    • Inbox
    • Unreceived
  • Provides a domain-level health dashboard so businesses can take a more strategic approach to email deliverability
  • Blacklist monitoring: Find out if your sending IP or domain is blacklisted, which could trigger SMTP errors and delivery failures.

Instantly.ai

Features

  • AI-Powered Email Automation
  • AI Sequence Generator 
  • AI Inbox Manager

Ideal for: Growth Hackers

Why it’s Great

  • Enables personalized creation of email copy
  • Development of complete email sequences in a fraction of a second
  • Classification of prospect replies, and respond depending on the context.
  • Excels in scaling email campaigns

Mailshake

Features

AI Email Writer

  • Data Finder
  • Email Deliverability Capabilities

Ideal For: Sales Representatives and Agency Owners

Why it’s Great

  • Can help generate an email company under a minute
  • Locate email prospects and identify leads
  • Set up DNS records to improve email deliverability

Smartlead.ai

Features

    • Unlimited email sending 
  • Smart lead segmentation
  • AI-generated email sequences
  • Email rotation system 
  • CRM and webhook integrations

Ideal for: Agencies and large teams

Why it’s Great

  • It can handle large-scale campaigns without compromising deliverability.
  • Providing AI-driven automation optimizes every step of outreach.
  • Ideal for growth-focused teams managing multiple inboxes

Lemlist

Features:

    • Personalized image and video emails
  • AI-driven warm-up tool
  • Automated follow-ups 
  • A/B testing 
  • LinkedIn integration

Ideal for: Medium-sized teams and marketing agencies

Why it’s Great

  • Customizable email templates
  • Built-in warmup contributes to increase in email deliverability
  • Hyperpersonalization can increase response rates
  • A/B testing capabilities by optimizing subject lines and email content

Outreach.io

Features

    • AI-powered sequence optimization.
  • Built-in analytics and reporting.
  • Conversation intelligence to improve messaging.

Ideal for: Sales teams and large organizations

Why it’s Great

  • Ideal for outbound sales outreach
  • Provides an AI-driven insights to help improve response rates
  • Can reduce manual sales tasks thanks to its automation feature

Woodpecker.co

Features:

  • Behavior-based follow-ups
  • AI-powered personalization
  • Bounce shield technology
  • Spam word detection
  • Team collaboration features

Ideal for: Small to mid-sized teams looking for simple outreach

Why it’s Great

  • Renowned for its easy-to-use interface
  • Can send replies depending on recipient interactions
  • Offers dynamic email content based on data
  • Reduce email bounce rates
  • Can flag problematic keywords before user click on send

Reply.io

Features

    • Email Deliverability
  • Email Finder
  • AI Variables

Ideal for: Teams that require a multichannel outreach platform

Why it’s Great

  • Can improve inbox reach
  • Find prospects and reach out seamlessly
  • Offers personalization

How to Choose the Right Cold Email Software

Choosing the right cold email software can be a challenge, but as long as you keep a realistic standard and confirm your business’ size, goals and the amount of automation and personalization it will require then you can set yourself up for success. Here is your guide and best practices. 

Budget

Considering the price, your resources, and your budget can be a huge factor, and although it is ideal to obtain a tool that fits your bills you also need to consider the features that come along with it.

Remember that using a tool is not a liability, it is an investment, you should use the cold email software tool to improve your outreach without compromising on quality, not to cheapen it. .

Team Size

Evaluate your team’s size, if your team is smaller then you can opt for a software that offers a simplistic interface, and as soon as your system grows you can subscribe for a more complex and sophisticated one. 

Need for Personalization

Personalization is the key especially for a cold email to capture a response, tools such as AnyBiz offers a next-level personalization capability to ensure that writing your cold email feels more personalized, increasing your chance to obtain a successful business campaign. 

  • Messaging Tab: Select the type of message you want to send. You can personalize email introduction or its follow-up, depending on the prospect’s engagement level.
    • Note: You can also customize LinkedIn messages
  • Language Tab: You can choose any language you think your prospect is more comfortable with, making your prospects feel like you’ve taken the time to understand their language and culture.
  • Tone of Voice: You can choose from:
    • Formal 
    • Professional
    • Friendly

Deliverability / Warm-Up Features

Email remains as one of the most cold outreach campaigns in the market, but one of the things that many email marketers often neglect is its email deliverability. Adeline AI leverages AI and is designed to optimize email deliverability and outreach efforts. Adeline contributes higher engagement and better email inbox placement by offering the following key features:

Personalized Email Warmup Plans

Maximizing email deliverability and reducing the chances of your emails landing in spam. 

Predicting Optimal Sending Times

Analyze real-time sending performance to predict the optimal times and frequencies for your emails improving engagement rates and ensure recipients are not overwhelmed by receiving tons of emails. 

Spam Risk Detection

Evaluate email body content, subject lines, and sender reputation to help keep your messages out of spam folders and flag emails with a high probability of being marked as spam due to issues in the content format.

Reporting & Integrations

If you require robust reporting and CRM integrations, AnyBiz is capable of integrating its system with popular CRM software, such as Hubspot, allowing you to manage your leads, contacts and outreach campaigns. 

FAQs About Cold Email Tools

Q: What’s the best cold email software for startups?
A: With its rich set of features, AnyBiz can be ideal for startups who want to leverage the full potential of AI, develop their workforce and outreach strategy. 

Q: Which tool is best for email deliverability?
A: Warmy.io is specifically designed to improve email deliverability and is ideal if you’re focused on inbox placement, although you can also use AnyBiz since it can provide Adeline AI for email deliverability. 

Q: Is it legal to send cold emails with these tools?
A: Yes, but you must comply with laws like GDPR and CAN-SPAM. Make sure your emails are compliant by following opt-in and opt-out regulations.

Q: What’s the difference between CRM and cold outreach software?
A: CRM software focuses on managing customer relationships, while cold email campaign software is designed specifically for automated prospecting and lead generation.

Have You Chosen Yet?

There’s no one-size-fits-all solution when it comes to cold email software. The best tool for you depends on your business needs, whether you prioritize scalability, personalization, or ease of use.

Here is your Checklist:

  • Determine your budget and team size.
  • Identify which features matter most to you (e.g., deliverability, automation, CRM integrations).
  • Consider whether you need personalization features or a tool that can handle high-volume outreach.

Not sure which software is best for you? Try AnyBiz at a very low price or book a demo meeting to know more!

“AI is not replacing lawyers—it’s empowering them. By automating the mundane, enhancing the complex, and democratizing access, AI is paving the way for a legal system that’s faster, fairer, and more future-ready.”

Michael Sterling
CEO - Founder @ Echo

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