Smartlead vs Mailshake vs Overloop Comparison

Created On:
March 1, 2024
Updated On:
March 13, 2024
Smartlead vs Mailshake vs Overloop, Which One is Better in Closing The Deal?

In today's world, where inboxes are overflowing with emails and attention spans dwindle, cold emailing can feel like shouting into the void. But don’t worry! The right cold emailing software can help you scale your business with high-quality lead generation. 

Imagine crafting personalized messages that land directly in your ideal customer's inbox, bypassing the spam filter. With the right software, you can automate tedious tasks, personalize your outreach at scale, and ensure your emails get seen and heard.

But with so many options on the market, choosing the perfect software can be overwhelming. In this Smartlead vs. Mailshake vs. Overloop comparison, we'll take a closer look at popular options like Smartlead, Mailshake, and Overloop and discuss their key features, strengths, and pricing to help you find the software that will take your cold emailing efforts to the next level. 

A Brief Overview of the Tools 

Let's break down what Smartlead, Mailshake, and Overloop offer to help you with cold emailing and figure out which tool best fits your business needs. 

Smartlead: Smartlead aims to make cold emailing a breeze and more effective, especially for B2B companies. It helps your emails land in prospects’ inboxes by automating the warm-up process and rotating email accounts, so you're less likely to end up in the spam folder. The platform also focuses on keeping things organized with the Master Inbox for all your email conversations. Plus, it has the ability to manage campaigns with dynamic IP addresses, aiming to boost your chances of engaging potential customers.

Mailshake: Mailshake is a cloud-based tool, great for managing email campaigns and generating leads. It's handy for sending out personalized cold emails and automating follow-ups, which can save you a ton of time. Besides emails, Mailshake steps into LinkedIn and phone calls, making it a solid choice for businesses that want to reach out to prospects across different channels. It also integrates with various CRM and productivity tools, helping you keep track of your campaigns and results.

Overloop: Overloop offers list building, contact management, and outreach all in one place. It's capable of working with LinkedIn for finding and managing contacts, and it offers features like email tracking and sales automation to keep your campaigns running smoothly. With Overloop, you can customize your outreach on multiple channels and get detailed analytics on how your emails are performing. It's a good pick if you're looking for a tool that can help with more than just sending emails.

Detailed Comparison: Smartlead Vs. Mailshake Vs. Overloop 

Smartlead Website Homepage Screenshot

Key Features  

Smartlead makes your cold email campaigns smarter. It maintains and builds sender reputation and high email deliverability with auto-rotating email accounts, ensuring your emails are less likely to be marked as spam. 

The centralized master inbox is a game-changer for managing all your email conversations in one spot, making life easier for your team. You can create custom views for campaign monitoring and also see real-time replies. 

Email warm-ups happen automatically, boosting the chances your emails land where they should. Personalization is another big plus, with spintax allowing you to customize emails so they resonate more with each recipient. And with dynamic IP addresses for each campaign, Smartlead helps safeguard your sender reputation.

What’s It Best For

This tool is a standout for businesses focused on B2B lead generation and looking to improve their email deliverability. If you're sending lots of cold emails and want to increase the likelihood they actually get read, Smartlead has the features to support that goal. It's also great for teams looking for a comprehensive solution to manage their email outreach efforts more effectively. As you get unlimited email accounts, you can expand your outreach with your business’ growing needs. 

Client Reviews & Support

Users seem to love Smartlead for its robust feature set and the support that comes with it. 

Smartlead G2 Review

G2 feedback highlights quick, helpful, and responsive 24/7 customer support. Besides, Smartlead offers a comprehensive help center and chat support. This level of support is crucial for businesses relying heavily on their email marketing campaigns.


Smartlead offers 4 different pricing plans to fit different needs and budgets, including options for both monthly and annual billing. It also provides a free trial for 14 days, giving you a chance to test out the features before committing. 

Basic Plan: $34 per month; billed annually
Popular Plan: $66 per month; billed annually
Pro Plan: $79 per month; billed annually
Custom plan:
Custom pricing upon discussion 


Mailshake Homepage Screenshot

Key Features

Mailshake is all about streamlining your email outreach. It automates emails and follow-ups, saving you time and effort. 

The tool lets you personalize your campaigns to make each message feel one-on-one, even when you're reaching out to hundreds. With features like LinkedIn messaging and cold calling, it's not just about emails; you can connect with prospects across different platforms.

Mailshake also focuses on making sure your emails land in inboxes with its deliverability tools and integrate smoothly with many CRM and productivity tools, helping you keep track of everything in one place.

What’s It Best For  

If your strategy includes reaching out across multiple channels and you need to automate as much as possible to stay efficient, Mailshake is a solid choice. It's particularly useful for sales teams that juggle various tasks and need a reliable way to follow up with prospects. 

The tool's ability to integrate with other platforms also makes it a good fit for those who use a variety of tools and want everything to work together seamlessly.

Client Reviews & Support

Users often praise Mailshake for its ease of use and the effectiveness of its features. The support team is responsive and helpful, which is always a bonus when you're relying on a tool for important parts of your sales process.


Mailshake has clear, straightforward plans with two different prices. They don't offer a free trial directly, but there's a demo you can request to get a sneak peek into how it works before you commit.

Email Outreach: $ 44 user/month; billed annually 

Sales Engagement: $ 75 user/month; billed annually 


Overloop Homepage Screenshot

Key Features  

Overloop stands out for its ability to build and manage contact lists, plus its strong outbound outreach capabilities. It integrates with LinkedIn, making it easy to find and add new contacts. The platform also offers email tracking, so you know exactly how your campaigns are performing, and sales automation to streamline your processes. With Overloop, personalizing your outreach across emails and LinkedIn is straightforward, thanks to features like customizable lists and templates.

What’s It Best For 

This tool is good for SMBs, solopreneurs, and freelancers to grow their contact lists and manage outbound campaigns efficiently. If you're looking to combine email with LinkedIn outreach and value the ability to track your campaign's performance closely, Overloop could be a good match.

Client Reviews & Support  

User feedback suggests that Overloop's support team is responsive and helpful. This can be a big plus if you're new to sales automation tools or if you encounter any bumps along the way.


Overloop offers a clear pricing structure with an available free trial, allowing you to explore its features before making a decision. This makes it easier to evaluate whether it's the right tool for your business's outreach efforts.

Startup: $ 49 /user/month

Growth: $ 82 /user/month

Enterprise: $ 125 /user/month

Smartlead Vs. Mailshake Vs. Overloop: Which One is Better?

After looking closely at Smartlead, Mailshake, and Overloop, it's clear each tool has its strengths. Here's a quick rundown to help you compare them.

Smartlead brings a comprehensive set of features, including auto-rotating email accounts, a centralized inbox, and dynamic IP addresses. Mailshake focuses on omnichannel outreach with its email, LinkedIn, and calling capabilities. Overloop excels in list building and LinkedIn integration, along with email tracking and sales automation.

Smartlead wins in B2B lead generation and email deliverability, making it an indispensable tool for businesses that rely heavily on email outreach. Mailshake is a great choice for those who value an omnichannel approach, blending email with social and phone outreach. Overloop is best suited for companies focused on building and managing large contact lists and who appreciate detailed campaign analytics.

When it comes down to choosing the best cold emailing and sales engagement software, Smartlead takes the top spot. Its broad range of features designed specifically for email deliverability and engagement, combined with exceptional support and flexible pricing, make it the go-to choice for businesses looking to boost their B2B lead generation and email marketing success.


Choosing the right tool for cold emailing and sales engagement is vital for marketing success. Our comparison highlights Smartlead's capabilities in email deliverability and B2B lead generation, making it the best choice for businesses focused on improving their email outreach. While Mailshake offers a solid omnichannel approach and Overloop excels in list building and LinkedIn integration, Smartlead's comprehensive features, exceptional support, and flexible pricing set it apart.

For businesses aiming to enhance their cold email campaigns, Smartlead is the recommended tool. Its targeted features are designed to ensure your emails not only reach their destination but also engage your audience effectively. To see how Smartlead can benefit your business, consider trying the 14-day free trial, giving you firsthand experience with its powerful capabilities.

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Author’s Details

Sattwik Das

Sattwik is a Digital Marketing professional at Smartlead. He is a dedicated content writer who focuses on juggling words to bring out meaningful content. He is experienced in well-researched and SEO-optimized content creation, content editing, and copywriting for various businesses throughout the globe. His expertise in SEO, SMM, and SMO with a touch of creativity helps businesses grow and maximize their credibility and sales.


Edited by:

Sattwik Das


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Frequently asked questions

General Questions

What is Smartlead's cold email outreach software?

Email automation FAQs- Smartlead

Smartlead's cold email outreach tool helps businesses scale their outreach efforts seamlessly. With unlimited mailboxes, fully automated email warmup functionality, a multi-channel infrastructure, and a user-friendly unibox, it empowers users to manage their entire revenue cycle in one place. Whether you're looking to streamline cold email campaigns with automated email warmups, personalization fields, automated mailbox rotation, easy integrations, and spintax, improve productivity, or enhance scalability with subsequences based on lead’s intentions, automated replies, and full white-label experience, our cold email tool implifies it in a single solution.

How does the "unlimited mailboxes" feature benefit me?

Email automation FAQs- Smartlead

Our "unlimited mailboxes" feature allows you to expand your email communications without restrictions imposed by a mailbox limit. This means you won't be constrained by artificial caps on the number of mailboxes you can connect and use. This feature makes Smartlead the best cold email software and empowers you to reach a wider audience, engage with more potential customers, and manage diverse email campaigns effectively.

What do you mean by "unibox to handle your entire revenue cycle"?

Email automation FAQs- Smartlead

The "unibox" is one of the unique features of Smartlead cold email outreach tool, and it's a game-changer when it comes to managing your revenue cycle. The master inbox or the unibox consolidates all your outreach channels, responses, sales follow-ups, and conversions into one centralized, user-friendly mailbox.

With the "unibox," you gain the ability to:
1. Focus on closing deals: You can now say goodbye to the hassle of logging into multiple mailboxes to search for replies. The "unibox" streamlines your sales communication, allowing you to focus on what matters most—closing deals.

2. Centralized lead management: All your leads are managed from one central location, simplifying lead tracking and response management. This ensures you take advantage of every opportunity and efficiently engage with your prospects.

3. Maintain context: The "unibox" provides a 360-degree view of all your customer messages, allowing you to maintain context and deliver more personalized and effective responses.

How does Smartlead ensure my emails don't land in the spam folder?

Email automation FAQs- Smartlead

Smartlead, the best cold email marketing tool, ensures your emails reach the intended recipients' primary inbox rather than the spam folder. 

Here's how it works:
1. Our "unlimited warmups" feature is designed to build and maintain a healthy sending reputation for your cold email outreach. Instead of sending a large volume of emails all at once, which can trigger spam filters, we gradually ramp up your sending volume. This gradual approach, combined with positive email interactions, helps boost your email deliverability rates.

2. We deploy high-deliverability IP servers specific to each campaign. 

3. The ‘Warmup’ feature replicates humanized email sending patterns, spintax, and smart replies.
4. By establishing a positive sender reputation and gradually increasing the number of sent emails, Smartlead minimizes the risk of your emails being flagged as spam. This way, you can be confident that your messages will consistently land in the primary inbox, increasing the likelihood of engagement and successful communication with your recipients.

Can I integrate Smartlead with other tools I'm using?

Email automation FAQs- Smartlead

Certainly, Smartlead is designed for seamless integration with a wide range of tools and platforms. Smartlead offers integration with HubSpot, Salesforce, Pipedrive, Clay, Listkit, and more. You can leverage webhooks and APIs to integrate the tools you use. Try Now!

Email automation FAQs- Smartlead

What type of businesses sees the most success with Smartlead?

No, there are no limitations on the number of channels you can utilize with Smartlead. Our multi-channel infrastructure is designed to be limitless, allowing you to reach potential customers through multiple avenues without constraints.

This flexibility empowers you to diversify your cold email outreach efforts, connect with your audience through various communication channels, and increase your chances of conversion. Whether email, social media, SMS, or other communication methods, Smartlead's multi-channel capabilities ensure you can choose the channels that best align with your outreach strategy and business goals. This way, you can engage with your prospects effectively and maximize the impact of your email outreach.

Email automation FAQs- Smartlead

Do you provide me with lead sources?

Smartlead distinguishes itself from other cold email outreach software by focusing on limitless scalability and seamless integration. While many similar tools restrict your outreach capabilities, Smartlead offers a different approach.

Here's what makes us uniquely the best cold email software:

1. Unlimited Mailboxes: In contrast to platforms that limit mailbox usage, Smartlead provides unlimited mailboxes. This means you can expand your outreach without any arbitrary constraints.

2. Unique IP Servers: Smartlead offers unique IP servers for every campaign it sends out. 

3. Sender Reputation Protection: Smartlead protects your sender reputation by auto-moving emails from spam folders to the primary inbox. This tool uses unique identifiers to cloak all warmup emails from being recognized by automation parsers. 

4. Automated Warmup: Smartlead’s warmup functionality enhances your sender reputation and improves email deliverability by maintaining humanized email sending patterns and ramping up the sending volume. 

5. Multi-Channel Emphasis: Smartlead places a strong emphasis on multi-channel outreach. You can reach your prospects where they are with the LinkedIn outreach feature.   With Smartlead’s cold email automation software, you're always one step ahead in your outreach efforts, enjoying the freedom to scale your initiatives and seamlessly integrate with other tools—all while maintaining a focus on maximizing the impact of your outreach.

Email automation FAQs- Smartlead

How secure is my data with Smartlead?

Ensuring the security of your data is Smartlead's utmost priority. We implement robust encryption methods and stringent security measures to guarantee the continuous protection of your information. Your data's safety is paramount to us, and we are always dedicated to upholding the highest standards of security.

How can I get started with Smartlead?

Email automation FAQs- Smartlead

Getting started with Smartlead is straightforward! Just head over to our sign-up page and follow our easy step-by-step guide. If you ever have any questions or need assistance, our round-the-clock support team is ready to help, standing by to provide you with any assistance you may require. Sign Up Now!

How can I reach the Smartlead team?

Email automation FAQs- Smartlead

We're here to assist you! You can easily get in touch with our dedicated support team on chat. We strive to provide a response within 24 hours to address any inquiries or concerns you may have.

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