5 underrated tools that actually save a lot of time
In this article, we’ll introduce you to 5 seriously underrated tools, along with an honest review of each one: this…
Read more
People talk about “email marketing” as if it were a single topic—a single practice, a single type of tool. The reality is much more fragmented, and confusing the Categories costly—sometimes literally.
A cold email campaign sent from the same domain as your newsletters can ruin your deliverability in just a few weeks. Using a transactional tool for lead generation will result in mass unsubscribes and potentially spam reports. Using a newsletter tool for outreach will hurt your response rate because it simply isn’t designed for that purpose.
It's not a matter of unwillingness; it's a matter of design. Each category of email follows a different logic: distinct audiences, conflicting objectives, specific metrics, and, above all, technical infrastructures that cannot be shared.
This article provides a structured overview of these three major families of tools, including a selection of specific tools, their use cases, their strengths, their limitations, and a comprehensive guide to building a cohesive tech stack tailored to your profile.
Before going into detail about the tools, we need to lay the groundwork. These three Categories are Categories interchangeable.
The newsletter is sent to a list of subscribers who have explicitly agreed to receive your content. The goal is to build loyalty, keep subscribers informed, and foster a long-term relationship. The focus is primarily editorial.
Cold emailing involves contacting prospects who don’t know you yet. It’s a sales-oriented, one-on-one approach. The volume is generally lower, but each message is intended to trigger a specific action: a response, a meeting, or a demo. Personalization is crucial.
Transactional emails are triggered automatically by a user action: sign-up, purchase, forgotten password, order confirmation. This isn't a campaign—it's a service. Reliability and delivery speed take precedence over everything else.
These three approaches involve different technical infrastructures, distinct regulations (GDPR, CAN-SPAM), and tools designed with conflicting priorities. Using the wrong tool for the wrong category can lead to problems with deliverability, compliance, and effectiveness.
Formerly known as Sendinblue, Brevo has established itself as one of the leading French-language platforms for marketing automation and email marketing. The platform covers newsletters, text messages, transactional emails, and even CRM. That’s its main strength: everything is centralized.
The visual editor is intuitive, and the templates are numerous and well-designed. Segmentation is precise, with the ability to create fairly sophisticated automated workflows without needing technical skills. Deliverability is strong, and French-language support is a real advantage for organizations that prefer not to use English.
Drag-and-drop editor, advanced segmentation, automation, A/B testing, SMS marketing, integrated CRM, transactional emails, landing pages.
🏢 entrepreneurs small businesses and entrepreneurs :
The combination of a newsletter tool, transactional email, and CRM in a French-language interface—all at an affordable price—is hard to beat for a small business that doesn't want to sign up for multiple subscriptions.
🚀 Growing startups:
The transition from the free plan to paid plans is gradual, and automation features become more robust as you move up to higher tiers. This is convenient for a rapidly growing organization.
Beehiiv was born out of a simple observation: existing tools weren't designed for creators who want to monetize their newsletters. Founded by former members of the Morning Brew team, the platform views the audience as an economic asset.
What sets Beehiiv apart: the ability to offer paid subscriptions directly from the platform, a network of cross-promotions between newsletters (the Boosts network), and analytics that are far more advanced than average. The tool is designed for growth, not just for sending emails.
Premium newsletter publisher, native paid subscriptions, advanced analytics, referral network, segmentation, A/B testing, multiple integrations.
✍️ Content creators and solopreneurs:
If your newsletter is a product in its own right—not just a marketing channel—Beehiiv is the right choice for you. Its native monetization and growth network are game-changers.
📈 Newsletters in the scaling phase:
Built-in growth tools (recommendations, referrals) and retention-focused analytics make Beehiiv a platform designed to help you grow from 500 to 50,000 subscribers.
ConvertKit, renamed Kit in 2024, has built its reputation on a clear promise: to give entrepreneurs creators entrepreneurs tools that pros use, without the complexity of enterprise platforms. Segmentation by tags rather than multiple lists is an elegant approach that avoids duplicate contacts.
Visual automation is clear and well-designed. Kit integrates easily with leading content creation, e-commerce, and online course platforms. It is a mature platform with a large community and comprehensive documentation.
Segmentation by tags, visual automations, landing pages, forms, e-commerce integrations, paid subscriptions (Creator Network).
🎨 Trainers, podcasters, authors:
Kit is designed for creators who sell digital content: training courses, e-books, and online courses. It offers native integrations with Teachable, Gumroad, and Shopify.
💼 Freelancers with an established audience:
If you already have a list and are looking to monetize it without too much hassle, Kit offers a good balance between power and simplicity.
ActiveCampaign is in a league of its own. It’s not just a newsletter tool—it’s a comprehensive marketing automation platform, featuring a built-in CRM, lead scoring, advanced conditional automations, and detailed sales pipeline management.
For marketing teams that want to go beyond simply sending out campaigns, ActiveCampaign offers a depth of functionality that’s hard to match at this price point. There’s definitely a learning curve, but it’s worth the investment.
Advanced automation, integrated CRM, lead scoring, behavioral segmentation, A/B testing, SMS, and integrations with over 900 tools.
🏗️ Small and medium-sized businesses with structured sales cycles:
When the newsletter is part of a broader lead nurturing strategy—including qualification stages and sales pipelines—ActiveCampaign becomes a relevant solution.
📊 Data-driven marketing teams:
Behavioral lead scoring and conditional automation make it possible to personalize customer journeys to a degree that few other tools can match.
Lemlist has reinvented the concept of cold emailing by introducing image personalization: a prospect’s logo embedded in an image, a personalized screenshot, or a custom video. These features, which were still rare at the time of the tool’s launch, have established it as a leader in multichannel outreach.
The platform now includes a comprehensive lead network (Lemlist Database), LinkedIn outreach, automated sequences, and an email warm-up module. The approach is multichannel by design.
Image and video customization, multi-channel campaigns (email + LinkedIn), integrated lead database, email warm-up, A/B testing, detailed analytics.
🎯 B2B sales reps with intensive prospecting cycles:
The combination of outreach emails, LinkedIn, and advanced personalization is particularly effective for B2B lead generation, where attention is a scarce resource.
🏢 Growth agencies and SDRs:
Team features, shareable templates, and the lead database make Lemlist a robust tool for organized sales teams.
Smartlead is built around one core focus: deliverability. The platform allows you to connect multiple email accounts (Gmail, Outlook, custom SMTP) and intelligently distribute email sends to preserve the reputation of each domain. Automatic warm-up is included and works in conjunction with other users of the platform.
For users who send thousands of prospecting emails each month across multiple domains, Smartlead offers a robust infrastructure designed for scalability.
Multi-mailbox rotation, automatic network warm-up, custom sequences, multi-client management, deliverability analytics, CRM integrations.
🔁 Growth hackers and outreach agencies:
Multi-domain and multi-client management is a core use case for Smartlead. It’s ideal for agencies that manage lead generation for multiple brands simultaneously.
📬 Profiles that send a high volume of messages:
When you're dealing with thousands of emails per week spread across multiple inboxes, Smartlead provides the infrastructure that reduces the risk of being blacklisted.
Instantly quickly established itself in the cold email ecosystem thanks to a simple value proposition: connect an unlimited number of email accounts, send at scale, with automatic warmup included. Its pricing is aggressive given what it offers.
The tool has since incorporated a full-fledged lead generation CRM, detailed analytics, and a lead database. Its value for money is hard to beat for businesses focused on high volume.
Unlimited email accounts, automatic warm-up, email sequences, analytics, integrated CRM, lead database (Instantly Leads).
💡 Solopreneurs and freelancers actively seeking new clients:
The Basic Plan offers excellent value for money for anyone who wants to organize their lead generation efforts without a significant investment.
📈 High-volume sales teams:
Unlimited inboxes and the built-in warmup feature make Instantly a logical choice for teams that want to scale without adding more tools.
Woodpecker is a cold email and follow-up tool designed for B2B sales teams that prioritize reliability above all else. The platform is used by thousands of agencies and sales teams, particularly for managing multi-step sequences with conditions.
The response detection system is accurate: Woodpecker automatically stops follow-ups as soon as a prospect responds, which helps avoid awkward situations. The tool integrates well with popular CRMs such as HubSpot, Salesforce, and Pipedrive.
Conditional workflows, automatic response detection, A/B testing, CRM integrations, team management, and built-in warmup.
🤝 Sales teams with an existing CRM:
Native integration with HubSpot, Salesforce, and Pipedrive makes Woodpecker a natural choice for teams that already use a CRM.
🏢 B2B Agencies:
The agency mode, with multi-client management and centralized reporting, is particularly well-designed.
MailerSend is the transactional email infrastructure of the Mailersuite group (which also owns Mailerlite). The platform offers its own well-documented API, webhooks, a drag-and-drop template editor, and granular management of sending domains.
What sets MailerSend apart is its combination of a user-friendly interface for non-developers and a powerful API for technical teams. Its deliverability management, detailed logs, and real-time alerts make it a solid choice for applications that send critical emails.
REST API, SMTP relay, template editor, webhooks, multi-domain management, detailed logs, automatic removal of bounces.
👨💻 Developers and product teams:
Clear API documentation, SDKs available in multiple languages, and configurable webhooks make MailerSend an excellent technical choice.
🛍️ E-commerce businesses and SaaS companies:
Confirmation emails, delivery notifications, forgotten password emails, and welcome emails: MailerSend reliably handles all these critical scenarios.
SMTP2GO is a dedicated SMTP infrastructure Focus on deliverability and monitoring. The platform offers detailed email logs, bounce reports, alerts, and a user-friendly monitoring interface. Integration is simple: just update the SMTP settings in your application or CMS, and you're all set.
It is particularly well-suited for WordPress environments (with dedicated plugins), PHP applications, and traditional CMSs that do not natively support transactional processing well.
SMTP relay, email sending API, detailed logs, bounce management, alerts, dedicated IPs, SPF/DKIM/DMARC authentication.
🔧 Developers and system administrators:
Universal SMTP integration allows you to use it with any language or platform. Setup is quick.
💻 WordPress and CMS websites:
The official WordPress plugin and its compatibility with WooCommerce make it a popular choice for online stores and websites that send a high volume of automated emails.
Before sending anything, the quality of your list and your domain’s reputation will determine your results. There are two types of tools that meet these needs.
Allows you to clean up your list before sending. Zerobounce, Emailable, and Email List Validation are industry leaders in this field. These tools detect non-existent addresses, spam traps, disposable addresses, and duplicates. Regular cleaning reduces hard bounces, protects your reputation, and improves your delivery rates.
This is essential for new email addresses used in cold emails. Mailivery and Warmup Inbox automate this process by simulating email exchanges between inboxes to gradually build a positive reputation with spam filters.
When searching for email addresses for outreach campaigns, Hunter Email, Snov, and Anymail Finder allow you to find verified work email addresses based on a name or a company domain.
Here is a brief overview of the tools discussed in this article to help you quickly get your bearings:
| Tool | Category | Ideal for | Admission price | Key strength |
|---|---|---|---|---|
| Brevo | Newsletter + Transactional | Small Businesses, entrepreneurs | Free (300/day) | All-in-One for French Speakers |
| Beehiiv | Newsletter | Creators, solopreneurs | Free / $39/month | Native monetization |
| Kit | Newsletter | Trainers, creators | Free (10k subscribers) | Segmentation by tags |
| ActiveCampaign | Newsletter + Automation | SMEs, marketing teams | $15/month | Advanced Automation |
| Lemlist | Cold Email | B2B, SDR, agencies | $39/month | Advanced Customization |
| Smartlead | Cold Email | Branches, volume | $39/month | Multi-inbox + deliverability |
| Instantly | Cold Email | Solopreneurs, teams | $37/month | Unlimited boxes |
| Woodpecker | Cold Email | B2B teams, agencies | $29/month | Reliability + CRM Integrations |
| MailerSend | Transactional | Developers, SaaS | Free (3k/month) | Modern API |
| SMTP2GO | Transactional | WordPress, CMS | Free (1k/month) | Universal SMTP |
Note on pricing: The prices listed in this article are for informational purposes only and are based on publicly available price lists at the time of writing. They are subject to change, so please check directly with the publishers.
Here are a few common questions to help you clarify the decisions you need to make before setting up your infrastructure.
No, and it’s not recommended. Newsletter platforms (Brevo, Kit, Beehiiv) are designed for opt-in contacts and are governed by strict terms of use that prohibit cold emailing. Conversely, sending your newsletter through a cold email tool will harm your deliverability and deprive you of essential editorial features. Keeping them separate is a best practice, not a requirement.
Not necessarily. Brevo natively integrates transactional emails via an SMTP API that is separate from your marketing campaigns. For a small business, this solution is sufficient. If you reach high volumes or have very specific monitoring needs, a dedicated tool like MailerSend or SMTP2GO provides additional granularity.
When you create a new email address or domain for lead generation, spam filters don’t recognize it yet. The warm-up process involves gradually sending emails from that address, starting with small volumes, to build a positive reputation. Without a warm-up, your cold emails will end up directly in the spam folder. Tools like Mailivery or Warmup Inbox automate this process.
It all depends on your needs. If you're looking for advanced personalization and multi-channel capabilities (email + LinkedIn), Lemlist is the go-to choice. If you need to handle high volume with multiple domains and email accounts, Smartlead or Instantly will be more effective. Instantly offers a very attractive price-to-quality ratio on its basic plans. All three include warmup, which is a basic requirement.
Yes, this should always be done for lists obtained more than 6 months ago or from third-party sources. A bounce rate higher than 2–3% can trigger alerts from your email service provider and damage your reputation. Tools like Zerobounce, Emailable, or Email List Validation allow you to clean up a list quickly and at a low cost.
If monetizing your audience is a short-term goal, Beehiiv is the most straightforward solution: paid subscriptions and sponsorships are built right in. Kit has also recently added this feature. Brevo does not natively support paid newsletters and requires a third-party integration (Stripe, Gumroad).
This is an important distinction. Marketing emails (newsletters, promotional campaigns) require explicit consent from the subscriber. Transactional emails (order confirmations, account notifications, password resets) are considered service communications and do not require opt-in consent, provided they are directly related to a user action. However, including promotional content in them changes their legal status.
