Case Study

How ColdIQ Bagged 57% Reply Rate

Rajnish Das
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February 24, 2026
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Initially a content-sharing website, Alex Vacca and Michel Lieben expanded ColdIQ on customers’ demand. They began their journey by making extensive content on sales tools targeting small business teams. Gradually, they began helping their customers with tool implementation and outbound strategies

Now, in 2024, ColdIQ is a trusted name with hundreds of businesses relying on them for information and outbound-related help. Not to forget, Alex Vacca and Michel Lieben have established themselves as thought leaders on LinkedIn, enjoying a huge following.

Let’s find out how Alex Vacca and Michel Lieben managed to reach such successful heights. 

What is Cold IQ

Cold IQ is a lead generation agency that caters to B2B companies, helping them with tool implementation and outbound campaigns. They audit their clients’ existing outbound campaigns, design automated workflows, build new campaigns, and scale the winning ones. 

How It All Started

Michel Lieben started ColdIQ with the vision of addressing a gap in the market for comparing sales tools effectively. He observed the limitations of existing platforms like G2, which favored established tools with more reviews and visibility. 

Initially, they conceptualized ColdIQ, recognizing the need for a platform that could showcase newer, potentially better-suited tools for smaller companies. Before founding ColdIQ, Michel Lieben had firsthand experience with the difficulties of manual cold email outreach. He saw the inefficiencies and limitations of these processes and recognized the untapped potential for automation. 

As they launched the ColdIQ website, they initially focused on content sharing and improving their SEO to attract visitors. However, as they gained traction, they noticed a growing demand from clients for more than just information—they wanted help implementing and managing sales tools, and even assistance with outbound marketing efforts. 

This client feedback pushed Michel and his partner Alex Vacca to expand ColdIQ's services, transforming it into a full-fledged agency. This expansion allowed them not only to provide valuable content on sales tools but also offer services related to tool implementation and outbound campaigns.

Their journey reflects a combination of identifying market needs, leveraging personal expertise, and adapting to evolving client demands. Their collective efforts turned ColdIQ into a comprehensive platform and service provider for sales and marketing solutions.

Challenges Faced

ColdIQ's Ideal Customer Profile (ICP) includes diverse industries such as PropTech, agencies, and SaaS companies, primarily in the US and Europe. They come with a wide range of issues. Here are the most common challenges that the ColdIQ duo and their clients faced: 

Manual Processes

Earlier, the process of creating effective cold email campaigns they followed was manual and labor-intensive. They usually hired someone to launch personalized email campaigns, who would manually check profiles and customize one-liners accordingly. The process of sending email campaigns manually was time-consuming and lacked scalability.

Poor Engagement

Most of ColdIQ’s customers approached them because of poor engagement in their outreach campaigns. They came with low open and reply rates, ranging from 20-25% for open rates and as low as 1-2% for reply rates.

Lack of Automation

Earlier, Michel Lieben struggled with their clients due to the lack of automation in their cold emailing processes. Manual tasks such as data research, personalization, and follow-ups were time-consuming, limiting efficiency and scalability in their client campaigns.

Absence of a Master Inbox

Before using Smartlead, email management was an issue. As a lead gen agency, they handled multiple clients at a time. Without a master inbox in previously used tools, they found it challenging to monitor, track, and respond to leads. 

Notable Achievements

  • Achieveing as high as 57.59% reply rate from cold email campaigns.
  • Building an email infrastructure that can handle sending bulk emails.
  • Expanding a content-sharing website to a lead generation agency.
  • Handling as many as forty clients at a time.  

Key Factors Contributing to ColdIQ's Success:

  • Expertise in Automation: Leveraging tools like Clay and Smartlead, ColdIQ streamlines processes, maximizing efficiency and effectiveness in cold email campaigns. This automation ensures timely outreach and personalized communication, driving higher engagement and conversion rates.
  • Client Management Excellence: ColdIQ offers clients transparency and control by providing access to Smartlead through the whitelabel feature. This empowers clients to monitor and manage their campaigns closely, fostering trust and satisfaction while enhancing collaboration and accountability.
  • Strategic Content Sharing: Initially a content-sharing website, ColdIQ strategically utilized content marketing to build brand awareness and credibility and attract potential clients. This approach laid the foundation for expansion into a successful lead generation agency.
  • Targeted Campaigns: ColdIQ specializes in running highly targeted campaigns tailored to the specific needs and preferences of B2B SaaS companies and agencies. This focus on precision targeting ensures that resources are allocated efficiently, maximizing ROI and client satisfaction.
  • Scalable Infrastructure: By developing a robust email infrastructure capable of handling bulk emails, ColdIQ can execute large-scale campaigns without compromising deliverability or performance. This scalability enables them to serve a growing client base effectively while maintaining high standards of service.

Conclusion

Outbound channels, such as cold emailing, have consistently proven to be the most efficient method for rapidly increasing a company's revenue. Unlike inbound strategies, outbound approaches are both cost-effective and time-efficient. This makes them particularly advantageous for small teams looking to achieve significant growth and expand their business operations.

As you’ve read in this case study, ColdIQ is helping many B2B companies reach new levels in terms of business goals. They’re helping their clients achieve as high as 26.11% positive response rate. Not to forget, they’re educating many companies about sales tools and implementing the right ones for their business. 

For lead generation agencies or those aiming to expand their business, I highly recommend SmartLead for cold email outreach. With a high-quality lead list and compelling copywriting, you have the potential to boost your revenue by over 100%, just like SalesAutomation.Systems

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Rajnish Das

Rajnish Das is an in-house writer at SmartWriter and Smartlead, creating product-oriented, data-driven content for B2B SaaS audiences. With a focus on outbound marketing techniques like cold emailing and LinkedIn outreach, Rajnish uses content marketing to drive leads and improve client engagement, positioning businesses as thought leaders in their respective industries.

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Frequently asked questions

What is Smartlead's cold email outreach software?
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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 Smartlead's unlimited mailboxes feature benefit me?
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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"?
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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.

Can Smartlead help improve my email deliverability rates?
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Yes, our cold emailing software is designed to significantly improve your email deliverability rates. It enhances email deliverability through AI-powered email warmups across providers, unique IP rotating for each campaign, and dynamic ESP matching.

Real-time AI learning refines strategies based on performance, optimizing deliverability without manual adjustments. Smartlead's advanced features and strategies are designed to improve email deliverability rates, making it a robust choice for enhancing cold email campaign success.

Can I integrate Smartlead with other tools I'm using?
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Certainly, Smartlead cold email tool 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!

What is Smartlead, and how can it enhance my cold email campaigns?
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Smartlead is a robust cold emailing software designed to transform cold emails into reliable revenue streams. Trusted by over 31,000 businesses, Smartlead excels in email deliverability, lead generation, cold email automation, and sales outreach. A unified master inbox streamlines communication management, while built-in email verification reduces bounce rates.Additionally, Smartlead offers essential tools such as CNAME, SPF Checker, DMARC Checker, Email Verifier, Blacklist Check Tool, and Email Bounce Rate Calculator for optimizing email performance.

How does Smartlead, as a cold emailing tool, automate the cold email process?
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Smartlead’s robust cold email API and automation infrastructure streamline outbound communication by transforming the campaign creation and management processes. It seamlessly integrates data across software systems using APIs and webhooks, adjusts settings, and leverages AI for personalised content.

The cold emailing tool categorises lead intent, offers comprehensive email management with automated notifications, and integrates smoothly with CRMs like Zapier, Make, N8N, HubSpot, Salesforce, and Pipedrive. Smartlead supports scalable outreach by rapidly adding mailboxes and drip-feeding leads into active campaigns Sign Up Now!

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

What features does Smartlead offer for cold email personalisation?
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Smartlead enhances cold email personalisation through advanced AI-driven capabilities and strategic integrations. Partnered with Clay, The cold remaining software facilitates efficient lead list building, enrichment from over 50 data providers, and real-time scraping for precise targeting. Hyper-personalised cold emails crafted in Clay seamlessly integrate with Smartlead campaigns.

Moreover, Smartlead employs humanised, natural email interactions and smart replies to boost engagement and response rates. Additionally, the SmartAI Bot creates persona-specific, high-converting sales copy. Also you can create persona-specific, high-converting sales copy using SmartAI Bot. You can train the AI bot to achieve 100% categorisation accuracy, optimising engagement and conversion rates.

Is Smartlead suitable for both small businesses and large enterprises?
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Smartlead accommodates both small businesses and large enterprises with flexible pricing and comprehensive features. The Basic Plan at $39/month suits small businesses and solopreneurs, offering 2000 active leads and 6000 monthly emails, alongside essential tools like unlimited email warm-up and detailed analytics.

Marketers and growing businesses benefit from the Pro Plan ($94/month), with 30000 active leads and 150000 monthly emails, plus a custom CRM and active support. Lead generation agencies and large enterprises can opt for the Custom Plan ($174/month), providing up to 12 million active lead credits and 60 million emails, with advanced CRM integration and customisation options.