Smartlead Vs. Folderly Vs. Who Wins in Cold Email Marketing?

Created On:
May 16, 2024
Updated On:
May 16, 2024
Smartlead Vs. Folderly Vs. Comparison

In the high-stakes world of digital marketing, cold email outreach remains a powerhouse strategy for businesses aiming to connect with potential clients. But with an array of tools promising to elevate your email campaigns, which one truly stands out?

Today, we dive into an in-depth comparison of three industry titans: Smartlead, Folderly, and

Why Should You Care About the Right Cold Email Tool?

  • 80% of buyers prefer to be contacted via email when seeking new solutions to drive better business results.
  • 43% of salespeople say email is their most effective sales channel.

Choosing the right tool can mean the difference between your message landing in an inbox versus the dreaded spam folder.

Setting the Stage: The Contenders

Each platform brings its own unique strengths to the table. 


Smartlead is a cold email powerhouse, excelling in email deliverability, lead generation, cold email automation, and LinkedIn outreach. It stands out with unique IP servers and unlimited warmups to optimize deliverability.

Smartlead G2 review
Smartlead enhances sender reputation through natural AI conversations and sophisticated algorithms that move emails from spam folders to the primary inbox.  Its cold emailing API infrastructure supports custom-conditional email triggers and sub-sequences based on lead behavior, all managed through a centralized master inbox. 

With features like email tracking, mailbox rotation, and full white-label capabilities, Smartlead saves time while maximizing outreach effectiveness.


Folderly is the ultimate email deliverability tool, ensuring 100% deliverability and significantly improving open and reply rates. It seamlessly integrates with popular CRMs, ESPs, and automation tools, offering a user-friendly setup and strict data safety compliance. 

Folderly 2 review

Meanwhile, is known for its excellence in email warm-up by gradually increasing sending volume to enhance deliverability. The software automates follow-ups, schedules, and pauses sequences based on recipient actions, optimizing email engagement and making campaigns more efficient with its robust automation and analytics features.

MmailRush G2 review

What’s at Stake?

With businesses witnessing a 5x increase in open rates through well-crafted cold emails, the stakes couldn't be higher. 

Whether you're a startup looking to scale rapidly or an established enterprise seeking to refine your outreach, the right cold email tool can transform your marketing efforts and drive substantial growth.

Read on we pit Smartlead, Folderly, and against each other in a head-to-head battle to determine which tool reigns supreme in the cold email marketing arena. 

We’ll look deep into the features, best use case, customer reviews, and last but not the least, their pricing plans. Let’s get right into it. 

Smartlead Vs. Folderly Vs. Key Features and Capabilities

Each tool promises to enhance your email outreach, but which one truly delivers on its promises? Let’s break down the key features and capabilities of three leading platforms—Smartlead, Folderly, and—to help you make an informed decision. 

Key Features and Capabilities: Smartlead

Smartead homepage

Multi-Channel Infrastructure: Expand your reach across various platforms including Email, SMS, Twitter, WhatsApp, and more, ensuring comprehensive coverage in your outreach strategy.

Automated Workflows: Simplify and streamline your sales processes with automated workflows that handle connection requests, follow-up messages, and social media interactions seamlessly.

Personalized Outreach: Leverage custom-conditional email triggers and sub-sequences based on lead behavior to create highly personalized and effective outreach campaigns.

Centralized Master Inbox: Efficiently manage all your email marketing efforts with a centralized master inbox that includes features like email tracking, mailbox rotation, and full white-label capabilities.

Unlimited Auto-Rotating Email Accounts: Benefit from unlimited auto-rotating email accounts, eliminating daily limits and concerns about email reputation.

AI Warmups: Use AI-driven warmups to build and defend your mailbox sending reputation, utilizing diverse mailboxes and humanized sending patterns.

High-Delivery IPs: Enhance deliverability with exclusive IP allocation for every campaign, ensuring your emails reach the intended recipients.

ESP Matching: Automatically match your lead's mailbox provider with yours to increase deliverability rates and ensure better engagement.


Smartlead seamlessly integrates with popular applications such as Gmail, Slack, Zapier, HubSpot, Zoho Mail, and Outlook. This integration streamlines your workflow and enhances productivity, allowing you to manage your outreach efforts from a unified platform.

Use Spam Checker Feature

Avoid Spam Triggers: Words like "discount," "free," and "act immediately" can significantly increase the chances of your emails being marked as spam. Additionally, avoid writing in all caps, using excessive punctuation, or including inflated numbers.

Use the spam checker feature on Smartlead to analyze your email content. This tool will highlight any words or phrases that could potentially trigger spam filters, allowing you to refine your email copy for better deliverability.

Smart-Adjusting Algorithm

Automatic Detection and Adjustment: Smartlead’s smart-adjusting algorithm detects mailboxes undergoing warmups and dynamically adjusts sending volumes throughout your campaign. This feature ensures optimal email delivery rates without manual intervention.

Post-Campaign Optimization: After your campaigns conclude, the algorithm automatically readjusts warmup sending patterns, maintaining a positive sending reputation and high deliverability rates.

The auto-adjust selection at the mailbox level is the ultimate source of truth. When activated, Smartlead's AI manages the sending/reply ratio based on real-time performance, ensuring continuous optimization of your email campaigns.

Implementing these features correctly ensures your campaigns run like clockwork. Smartlead flags any issues for easy fixes, improving deliverability and overall performance.

Exciting Updates

Campaign Progress Overview: Easily track the progress of your campaigns by viewing leads that are not started, completed, or blocked, all in one place. This overview helps you stay organized and ensures that no leads are left behind.

Campaign Sending Score: Aim for a perfect score of 10, divided into five key sections:

  • Sent Time Discrepancy
  • CNAME Not Working
  • DNS Validation, 
  • Disconnected Accounts
  • Re-associated Accounts. 

This scoring system ensures seamless campaign delivery and highlights areas needing attention.

GPT-4 Integration: Enhance your email outreach experience with GPT-4 features like Master Inbox Reply, Mail Sequence Compose AI, and Campaign Settings GPT-4 Categorization. These tools leverage advanced AI to optimize your email campaigns.

Pick Templates: Utilize community-generated templates based on ChatGPT prompts or create and share your own, fostering a community of sharing and innovation among Smartlead users.

Key Features and Capabilities: Folderly

Folderly guarantee 100% deliverability, enhance open and reply rates, and seamlessly integrate with popular CRMs, ESPs, and automation tools. With a user-friendly setup, robust data safety compliance, spam trigger checking, and SPF generation for domain privacy, Folderly is your go-to solution for optimizing email performance.

Supercharged Inbox Rate: Utilizing advanced algorithms, Folderly boosts your sender score, ensuring your emails interact positively with recipients and stay out of spam folders.

Spam Trigger Checker: Folderly's comprehensive spam trigger checker thoroughly analyzes your email content, minimizing the risk of your emails being flagged as spam by ESPs.

Automated Warm-up Maintenance: Keep your email deliverability high with Folderly's automated warm-up maintenance feature. It helps build and sustain a positive reputation for your email domain.

Integration Flexibility: Effortlessly integrate Folderly with major CRMs, ESPs, and marketing automation tools, including Microsoft Office 365, SendGrid, Google Workspace, Gmail, Outlook, and Amazon AWS.

Data Safety: Folderly prioritizes data protection, offering GDPR and CCPA-compliant solutions to safeguard your sensitive information.

SPF Generation: Perform SPF (Sender Policy Framework) checks and generate SPF records for your domain, further enhancing your email deliverability.

Folderly offers a comprehensive suite of advanced features to ensure your email deliverability remains impeccable:

  • Advanced Detection: Proactively detect potential problems before they occur, ensuring your messages consistently reach the inbox.
  • In-depth Analyzing: Monitor your email health by analyzing DNS records, content, and more, allowing for targeted improvements to your campaigns.
  • Compliance: Folderly prioritizes data security and adheres to SOC 2 and ISO27001 standards, ensuring your data is safe and secure.
  • Real-time Alerts: Receive immediate notifications the moment an email lands in spam, along with actionable tips to help safeguard your email reputation.

Key Features and Capabilities: is a specialized software designed for cold email campaigns. It offers automated follow-up capabilities using its SMTP service. 

This software is popular as a dedicated Cold Email ESP (Email Service Provider) for B2B outreach. It provides a distinct approach to cold email marketing, focusing on efficient and targeted communication for business-to-business campaigns. employs a sophisticated algorithm that gradually increases your sending volume, building a positive sender reputation with ISPs. 

This methodical approach mimics human behavior, reducing the likelihood of your emails being flagged as spam. Additionally, its built-in email warmup feature continuously engages with your email list, further solidifying your reputation as a trustworthy sender.

Gradual Increase in Sending Volume: gradually increases your email sending volume to help establish a positive sender reputation with Email Service Providers (ESPs).

Automated Warm-Up: The platform handles both initial email engagement and maintaining ongoing engagement. This feature, included in all paid plans, enhances email deliverability by optimizing the effectiveness of email campaigns.

Integrated ESP and Cold Email Tool: serves as both an email service provider and a cold emailing tool. Its parent company, Cyber Cast Intl, manages the data center, IP addresses, email servers, and the entire email ecosystem.

Reputation Management: By handling the entire email infrastructure, ensures the protection of the sender’s reputation and facilitates the delivery of emails to the primary inbox, maximizing the effectiveness of B2B email outreach campaigns.

Automated Follow-Up Sequences: allows you to schedule a series of follow-up emails that are sent automatically. 

  • The sequence adapts based on recipient actions, pausing if a specific conversion event is triggered, ensuring a targeted and efficient approach.
  • This feature enables you to scale your email outreach while maintaining control and adapting based on real-time recipient interactions.

Smartlead Vs. Folderly Vs. Pricing

Smartlead Pricing

  • Basic Plan: $39 per month
  • Pro Plan: $94 per month
  • Custom Plan (formerly Expert Plan): Starting at $174 per month

Folderly Pricing:

  • Monthly: $120 per mailbox
  • Yearly: Save up to $2600 yearly Pricing

  • Starter: $19 per month
  • Pro: $29 per month
  • Premium: $99 per month

They have a free trial and get 100 email credits to start your email campaigns.

Folderly Vs. Vs. Smartlead: User Review 

Folderly Reviews

Folderly g2 review
Folderly g2 review Reviews G2 review G2 review

Smartlead Reviews

Smartlead G2 review
Smartlead G2 review

Final Verdict: Which Tool Should You Choose for Cold Email Marketing?

Smartlead emerges as the best choice for cold email marketing, offering a comprehensive suite of features designed to enhance deliverability, streamline workflows, and drive engagement. Here's why Smartlead stands out among the competition:

  1. Deliverability: Smartlead's unique IP servers and unlimited warmups ensure high deliverability rates, helping your emails reach the primary inbox instead of being lost in spam folders.
  2. Automation: Smartlead's automated workflows simplify sales processes, handling connection requests, follow-ups, and social media interactions with ease. This streamlines your outreach efforts and saves time.
  3. Personalization: With custom-conditional email triggers and sub-sequences based on lead behavior, Smartlead enables you to create highly personalized campaigns that resonate with your audience.
  4. Omnichannel Outreach: Smartlead's multi-channel infrastructure allows you to expand your reach across various platforms, including email, SMS, Twitter, WhatsApp, and more, ensuring comprehensive coverage in your outreach strategy.
  5. Master Inbox: The centralized master inbox in Smartlead enables you to efficiently manage all your email marketing efforts, including features like email tracking, mailbox rotation, and full white-label capabilities.
Smartlead email infrastructure e-book
  1. AI Warmups: Smartlead uses AI-driven warmups to build and defend your mailbox sending reputation, ensuring optimal deliverability rates without manual intervention.
  2. Integrations: Smartlead seamlessly integrates with popular applications such as Gmail, Slack, Zapier, HubSpot, Zoho Mail, and Outlook, streamlining your workflow and enhancing productivity.
  3. Campaign Progress Overview: Smartlead provides a comprehensive overview of your campaign progress, allowing you to track leads that are not started, completed, or blocked, ensuring that no leads are left behind.
  4. Smart-Adjusting Algorithm: Smartlead's smart-adjusting algorithm detects mailboxes undergoing warmups and dynamically adjusts sending volumes throughout your campaign, ensuring continuous optimization of your email campaigns.

The Bottomline

In the fast-paced world of digital marketing, choosing the right cold email tool can be the difference between success and missed opportunities.

After a thorough comparison of Folderly,, and Smartlead, it's clear that Smartlead stands out as the top choice for businesses aiming to elevate their email outreach game.

With its comprehensive feature set, Smartlead offers a robust solution for improving email deliverability and driving engagement. Additionally, its integration flexibility and AI-driven warmup feature make it a versatile and user-friendly option for businesses of all sizes.

If you're looking to take your email marketing efforts to the next level and maximize your chances of meeting bookings, we recommend giving Smartlead a try. With a 14-day free trial and flexible pricing plans, you can explore the platform risk-free and see firsthand how it can benefit your business.

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Author’s Details


Rajashree specializes in strategizing and planning B2B SaaS product marketing content. As a writer turned researcher, she has a deep-rooted affinity for writing data-driven content. With over 8 years of experience in the industry, Rajashree has documented her insights in a series of blogs covering genres such as SEO, Content Marketing, Lead Generation, and Email Marketing.


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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.

Powerful Automated Email Marketing that Drives Sales.

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