18 Email Marketing Tools With the Best Deliverability for Campaigns

Picture this: navigating the vast ocean of email marketing tools can be as complex as navigating stormy seas. According to a Marketing Consultant specializing in Mailchimp, the journey toward superior deliverability begins with following best practices. At the other end, a Head of SEO highlights MailerLite’s ability to reward sender credibility, summarizing one of the 18 essential insights from industry experts.

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Follow Best Practices for Deliverability

It’s a myth that any one tool significantly improves your campaign deliverability. Certainly, using a reputable domain provider or ESP will help improve deliverability, but there is no magic bullet for fixing a deliverability problem.

Deliverability is dictated by a variety of factors, but the one most important thing a list owner can do to improve their deliverability rate is to follow best practices for building an engaged audience. Your domain reputation with ISPs and email clients like Google and Yahoo is built upon your track record of sending. Are you sending to dead/nonexistent names? Are you sending quality content that your subscribers open and engage with? Do subscribers report you for spam?

If you’re worried about deliverability, make sure you are building a list and email marketing program that considers industry best practices like opt-in permissions, list cleaning, and preference management, and focuses on those as you grow. If you’ve already experienced issues with deliverability, take a look at where your list and program are and evaluate them for improvement. Also, in that case, consider talking to a tech expert to make sure your DMARC/DKIM ducks are in a row, and that your providers are reliable and reputable with the inboxes you want to reach.

MaryAnn Pfeiffer, Marketing Consultant | Mailchimp Pro Partner, 108 Degrees Digital Marketing

Choose GetResponse for Reliable Results

As a tech-company CEO, I need reliable tools. One such tool is GetResponse, a titan in email marketing. Similar to having an ace quarterback that expertly delivers footballs directly into the receiver’s hands, GetResponse does the same for our emails—it ensures they land straight in the receiver’s inbox, sparing the spam. With its advanced analytics and A/B testing, our campaigns are efficiently optimized. I choose GetResponse based on its results, delivering on-the-mark emails with reliable finesse.

Abid Salahi, Co-founder & CEO, FinlyWealth

Mailgun Offers Robust Deliverability

The email-marketing tool we use, and one that has provided the best deliverability for our campaigns, is Mailgun. Mailgun is a scalable and results-driven email platform that allows us to send, track, and optimize our emails.

It has API integration, which has enabled our development team to easily integrate email functionality into our platform. We can, therefore, send emails to our customers flexibly.

The platform also boasts robust deliverability. It is easy to validate if your emails were delivered to the recipients. Mailgun leverages send-cached data to validate if an email is valid or high-risk, which has helped us optimize our email campaigns and improve success.

Clooney Wang, CEO, TrackingMore

ConvertKit Ensures High Deliverability

I’ve found ConvertKit to offer excellent deliverability for email-marketing campaigns. One of its key strengths is its focus on creator-based businesses, making sure emails reach the right audience by providing features like double opt-in, automated sequences, and customizable deliverability settings. Additionally, ConvertKit allows for detailed tagging and segmentation, which has helped me target specific audiences and increase engagement. Its simple interface and clear analytics have also allowed me to monitor and improve deliverability rates with ease.

It’s a great tool for anyone looking to maintain high deliverability and engagement.

Sebastian Petrosi, Head of Content Marketing, howtowatch.ca

Postmark Excels in Transactional Delivery

Postmark stands out when it comes to ensuring emails not only reach their destination but also dodge the spam folder effectively. This tool’s emphasis on transactional email delivery—where timing and reliability are paramount—translates surprisingly well to marketing campaigns where similar attributes are valued. Their support team goes above and beyond in helping configure DKIM and SPF records, ensuring we’re always aligned with best practices. Furthermore, Postmark’s real-time analytics provide immediate feedback on our campaigns, allowing for swift adjustments.

Jason Hennessey, CEO, Hennessey Digital

Klaviyo Optimizes for E-Commerce

While I can’t definitively say that Klaviyo has superior deliverability compared to all other platforms, I can share why we’ve found it to be highly effective for our clients.

Klaviyo’s focus on e-commerce means they have a deep understanding of the unique challenges and best practices associated with this industry. This allows them to optimize their platform and infrastructure to deliver emails to e-commerce subscribers more effectively.

Additionally, Klaviyo’s robust analytics and reporting tools help us monitor our email deliverability rates and identify any issues that may be affecting inbox placement. This data-driven approach allows us to make informed adjustments and optimize our campaigns for better results.

Erin Siemek, CEO, Forge Digital Marketing, LLC

Use Custom Domain for Better Control

The best email-marketing tool for deliverability isn’t just about the platform itself, but how you use it with a custom domain tied to your own email authentication protocols like SPF, DKIM, and DMARC.

Most people focus on tools like ConvertKit or ActiveCampaign, but the secret sauce is pairing any reputable platform with your own domain’s warmed-up IP and clean list-management practices.

This combo creates a unique sender reputation under your control, which is often the real game-changer for hitting inboxes consistently.

Instead of chasing platform features, take control of the technical backend—this puts you ahead of 99% of marketers relying solely on tool-based deliverability claims.

Austin Benton, Marketing Consultant, Gotham Artists

SendGrid Leads in AI-Driven Deliverability

We’ve found SendGrid to be the top performer for deliverability in our AI-driven campaigns. Their advanced infrastructure and machine-learning algorithms have consistently yielded a 99.8% deliverability rate for our B2B SaaS products, significantly outperforming other tools we’ve tested.

Joshua Odmark, CIO and Founder, Local Data Exchange

Mailercloud Provides Personalized Support

Email deliverability is one of the most essential factors in setting up effective communication and marketing campaigns. We’ve tried various tools and even tried to create our own in-house tool, too, but deliverability is a tough shell to crack. That’s why we’ve gone with Mailercloud, which offered us a deliverability rate of 85%. Its dedicated email deliverability provides personalized support for our business’s specific needs, along with live-chat support and integration support.

Fahad Khan, Digital Marketing Manager, Ubuy Nigeria

Sendy with AWS SES for Customization

I really like Sendy, which connects to an AWS SES instance. This setup can easily be customized as a private server, which means you aren’t negatively affected by other people on a platform. Instead, you can focus on sending great emails and being sure that your audience will receive them.

Michael Alexis, CEO, Island Residency Solutions

Monitor Metrics for Optimal Performance

I’d say that determining the “best” email-marketing tool for deliverability isn’t straightforward, as it depends on various factors. However, some consistently high-performing options include Mailchimp, SendGrid, and Constant Contact. These platforms invest heavily in maintaining strong sender reputations and relationships with ISPs.

Key factors affecting deliverability include list hygiene, engagement rates, and adherence to best practices. Regular list cleaning, segmentation, and personalization can significantly improve results regardless of the chosen tool.

It’s crucial to monitor metrics like open rates, click-through rates, and spam complaints. A/B testing subject lines and content can help optimize performance. Also, authenticating your domain with SPF, DKIM, and DMARC protocols enhances deliverability across all platforms.

Darcy Cudmore, Founder, RepuLinks

Campaign Cleaner Enhances Email Performance

I can confidently say that our tool is designed to offer exceptional deliverability for email campaigns. Our platform tackles several key issues that can impact email performance, such as broken links, spam triggers, and oversized images. With features like AI-driven spam trigger detection, comprehensive email-inbox previews, and advanced image optimization, we ensure that your emails are optimized for the best possible delivery.

Our integration capabilities with major email marketing platforms like Mailchimp, SendGrid, and HubSpot enhance its flexibility and effectiveness. Many of our clients see a significant boost in open and click-through rates, typically between 5-15%, as they improve their email reputation over time. While I am naturally proud of our tool, I encourage you to evaluate it based on your needs to see how it can help elevate your email-marketing efforts.

Henry Timmes, CEO, Campaign Cleaner

Constant Contact Delivers High Engagement

We’ve had great success using Constant Contact for our e-commerce clients’ email marketing needs. Their deliverability rates are consistently high, and their segmentation tools have helped us achieve a 25% increase in click-through rates for our personalized gamification campaigns.

John Cheng, CEO, PlayAbly.AI

ActiveCampaign Offers Advanced Automation

When it comes to email marketing tools with the best deliverability, ActiveCampaign stands out for several reasons:

• Advanced Automation: ActiveCampaign’s robust automation features help ensure emails reach the right audience at the right time, improving engagement and deliverability.

• Deliverability Monitoring: They have a dedicated team that monitors email deliverability and provides tips to improve it based on individual campaigns.

• Customizable Sending Options: You can customize sending domains and IP addresses to maintain sender reputation, which is key to ensuring higher inbox placement.

• Strong Authentication: They support SPF, DKIM, and DMARC protocols to prevent emails from being marked as spam, which helps maintain high deliverability rates.

Other top contenders include Mailchimp, Sendinblue, and GetResponse, but the choice depends on the specific features your business values most, such as automation, scalability, or segmentation.

Dhruv Shah, SEO Manager, Make Visible Digital

Brevo Focuses on High Deliverability

Brevo (formerly Sendinblue) is an excellent choice for email marketing, with a focus on high deliverability. Brevo stands out by offering dedicated IP addresses for higher-volume senders, which improves sender reputation and reduces the likelihood of emails landing in spam folders. The platform’s advanced list segmentation allows businesses to target the right audience with tailored content, improving engagement and deliverability.

Brevo also provides tools like real-time analytics, A/B testing, and list-management features, which help marketers refine their campaigns and ensure optimal inbox placement. Its compliance with anti-spam regulations like GDPR and CAN-SPAM further boosts deliverability by ensuring proper list hygiene and reducing bounce rates.

Ben Wieder, CEO, Level 6 Incentives

Mailchimp Provides Comprehensive Analytics

In my experience, both in sports marketing and now in consumer marketing, Mailchimp has provided excellent deliverability for our campaigns. It’s been an effective tool for delivering news, product updates, and driving sales. Mailchimp also offers a comprehensive range of analytics and statistics, helping you understand what works and what doesn’t. While there was a bit of a learning curve, I found that, after a few weeks, I developed an efficient workflow, making the platform easy and fast to use.

Luc Schmitz, Owner, Cici Ceuticals

HubSpot Offers Unique Insights

In my experience, HubSpot is still the 800-pound gorilla in the room. HubSpot has some of the most unique insights and data, paired with an incredibly friendly UI/UX into your email marketing campaigns. Through HubSpot’s tracking of time spent on email, what links were clicked, what content was most read, bounce-back rates, unsubscribe rates, and more, you are uniquely able to tailor and shape your email marketing campaigns. They also offer AI generative solutions and content to improve the deliverability and impact of your emails. While there have been startups that aim to displace HubSpot, I’ve found that the totality of the platform is still best-in-class.

Ankur Dadhania, Chief Marketing Officer, Sole Focus Foot and Ankle

MailerLite Rewards Sender Credibility

The one email-marketing solution that has inexplicable deliverability but still stands out, in my opinion, is MailerLite. Most people go with the bigger names like Mailchimp or HubSpot, but MailerLite does have a few good advantages if you’re into pushing email into the inbox rather than the spam folder. It is built with a proprietary algorithm that rewards sender credibility and open rate for better deliverability.

The cool part about MailerLite is it already includes features like A/B testing, segmentation, and even the ability to purge your list by removing non-responders. This maintains the health of your list and increases your likelihood of reaching the inbox. I’ve seen my deliverability rates increase almost 10% over some of the other big players, and it’s really easy to work with, so it’s a great hidden gem for anyone looking to grow their email list.

Jason Stelle, Head of SEO, Filterbuy

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