Email marketing platforms all claim high deliverability rates, easy-to-use editors, and powerful automation. Then you sign up and discover the email builder is frustrating, half your emails land in spam, and automation requires a computer science degree to configure.

We tested seven email marketing platforms for four months, sending real campaigns to real subscribers, to see which ones actually deliver value.

Mailchimp: The Default Choice, For Better or Worse

Mailchimp dominated email marketing for years through aggressive free tier marketing and early market entry. The platform is functional but hasn’t innovated meaningfully in a decade.

The email builder uses drag-and-drop blocks that work reliably if not excitingly. Template selection is extensive but many look dated. Custom HTML is supported for users who know code.

List management is straightforward. Segmentation works with tags and groups. The audience insights dashboard shows basic metrics: open rates, click rates, subscriber growth.

Automation exists but feels bolted on rather than core to the platform. Setting up welcome sequences or abandoned cart emails requires more clicks than competitors. The automation builder is clunky.

Pricing starts free for up to 500 subscribers, then jumps to $20/month for 500 contacts with automation. Costs scale with subscriber count: 1,000 contacts = $35/month, 2,500 = $60/month. The pricing can get expensive quickly.

Deliverability is acceptable but not exceptional. Emails generally land in inboxes, but spam folder rates are higher than dedicated deliverability-focused platforms.

For users already on Mailchimp who haven’t hit major pain points, staying makes sense. For new users, better options exist.

ConvertKit: Built for Creators

ConvertKit (now rebranded as Kit) targets creators: bloggers, podcasters, course creators. The platform optimizes for growing an audience and selling digital products.

The email builder is simple to a fault. Plain text emails with minimal formatting are encouraged. This isn’t a limitation—it’s intentional. Creator emails often perform better with personal, plain-text styling rather than heavy graphics.

Subscriber management uses tags rather than lists, which fits how creators segment audiences. You can tag subscribers based on interests, purchases, or behavior, then send targeted emails.

Landing pages and signup forms are included, which is useful for creators building audience. Templates are minimal but convert well. Integration with WordPress and other creator tools is solid.

Automation is ConvertKit’s strength. Visual automation builder makes it easy to create sequences triggered by subscriber actions. Welcome sequences, product launches, and nurture campaigns are all straightforward to build.

Pricing starts at $15/month for 300 subscribers with basic features. Creator tier at $29/month for 300 subscribers adds automation and full features. Like competitors, costs scale with subscriber count.

For creators building audience and selling digital products, ConvertKit fits perfectly. For e-commerce or traditional businesses, it feels limited.

ActiveCampaign: Automation Powerhouse

ActiveCampaign positions itself as marketing automation with email capabilities rather than email marketing with automation features. The distinction matters.

The automation builder is the most powerful we tested. Visual workflow editor lets you create complex multi-step sequences with branching logic, conditional content, and triggers based on subscriber behavior. For businesses that want sophisticated automation, ActiveCampaign delivers.

Email builder is functional with drag-and-drop and templates. It’s not as polished as some competitors but gets the job done. The focus is clearly on automation rather than email design.

CRM functionality is included, which sets ActiveCampaign apart from pure email tools. You can track deals, manage contacts, and see complete interaction history. For small businesses, this integrated CRM is useful.

SMS marketing is available, allowing multi-channel campaigns. Website tracking shows what pages subscribers visit, enabling behavioral targeting.

Pricing starts at $15/month for 500 contacts with basic email. Plus tier at $70/month adds automation. Professional at $187/month adds predictive sending and win probability. The pricing jumps are significant.

For businesses that will use advanced automation, ActiveCampaign justifies the cost. For simple email newsletters, it’s overkill and overpriced.

Klaviyo: E-commerce Specialist

Klaviyo built its platform specifically for e-commerce. Integration with Shopify, WooCommerce, and other e-commerce platforms is deep and native.

The platform automatically segments customers based on purchase behavior: first-time buyers, repeat customers, high-value customers, at-risk of churning. This segmentation drives targeted campaigns that convert.

Abandoned cart emails, browse abandonment, post-purchase sequences, and win-back campaigns all have pre-built templates that work. For e-commerce businesses, these automated flows directly generate revenue.

Email builder is solid with good template selection. Product recommendation blocks pull from your store catalog automatically. Dynamic content shows different products based on customer history.

Analytics focus on revenue attribution. You can see exactly how much revenue each campaign generates, which products drive most email revenue, and customer lifetime value by segment.

Pricing starts free for up to 250 contacts, then $20/month for 500 contacts. Costs scale aggressively: 10,000 contacts = $150/month. For e-commerce businesses where email drives significant revenue, the cost is justified.

For non-e-commerce businesses, Klaviyo is the wrong tool. The entire platform optimizes for online retail.

Brevo (formerly Sendinblue): Budget-Friendly Alternative

Brevo offers more generous free tier than competitors: 300 emails per day to unlimited contacts. Paid plans start at $8/month for 5,000 emails, with pricing based on emails sent rather than subscriber count.

For businesses with large, inactive lists, this pricing model saves money. You pay for engagement rather than list size.

Email builder is straightforward with drag-and-drop and decent templates. Automation exists but is less sophisticated than ActiveCampaign or Klaviyo. SMS marketing is included even on lower tiers.

Deliverability is acceptable. Not industry-leading but adequate for most use cases.

The platform feels less polished than competitors. Interface quirks and feature limitations emerge with heavy use. But for budget-conscious businesses, Brevo delivers functional email marketing at lower cost.

MailerLite: Simple and Affordable

MailerLite targets users who find Mailchimp too expensive and ActiveCampaign too complex. The platform focuses on being simple and affordable.

Email builder is clean and intuitive. Templates are modern and mobile-responsive. Creating emails is faster than most competitors.

Automation is available with visual builder that’s easier to understand than ActiveCampaign but less powerful. For common scenarios (welcome sequences, birthday emails, re-engagement), it works well.

Landing pages and signup forms are included with good templates. Website builder is even available, though it’s basic.

Pricing starts free for 1,000 subscribers with limited features. Growing Business at $10/month for 1,000 subscribers includes automation and full features. Costs scale reasonably: 10,000 subscribers = $70/month.

For small businesses that need straightforward email marketing without complexity, MailerLite offers excellent value.

What Actually Determines Success

After four months of real campaigns, certain factors mattered more than others:

Deliverability trumps features. Fancy automation is useless if emails land in spam. We tracked inbox placement across platforms: ActiveCampaign and Klaviyo had best deliverability. Mailchimp and Brevo were acceptable. Cheap platforms had worse deliverability.

List growth features matter if you’re building audience. ConvertKit and MailerLite have better landing pages and forms than competitors. For established lists, this matters less.

Ease of creating emails affects consistency. If email creation is painful, you’ll send less frequently. MailerLite and ConvertKit make creation easiest. ActiveCampaign and Klaviyo require more effort but offer more control.

Segmentation quality determines targeting effectiveness. Klaviyo’s e-commerce segmentation is best for retail. ActiveCampaign’s behavioral tracking is best for B2B. Mailchimp’s segmentation is basic but functional.

The Deliverability Problem

Email deliverability varies by platform, but sender reputation matters more. New platforms often have better deliverability simply because their infrastructure isn’t associated with spam yet.

Build sender reputation by: authenticating your domain (SPF, DKIM, DMARC records), maintaining list hygiene (remove inactive subscribers), avoiding spam trigger words, getting explicit opt-ins.

Even the best platform can’t fix deliverability if you’re sending to purchased lists or spamming people.

Our Recommendations

Best for e-commerce: Klaviyo. The e-commerce integration and revenue attribution justify the cost if email drives sales for your business.

Best for creators: ConvertKit. The landing pages, simple email builder, and creator-focused features fit the use case perfectly.

Best for automation: ActiveCampaign. If you need complex multi-step workflows and behavioral triggers, nothing else matches the capability.

Best budget option: MailerLite. Simple, affordable, and functional. Perfect for small businesses with straightforward needs.

Best for large inactive lists: Brevo. Pay-per-email pricing saves money when subscriber count is high but engagement is low.

Avoid: Mailchimp. It’s not bad, but competitors offer better value and features at similar or lower prices. The only reason to choose Mailchimp is existing familiarity.

Beyond the Platform

Email marketing success depends more on strategy than software. No platform will save you if you’re emailing uninterested people generic content.

What works: value-first content, clear calls to action, consistent sending schedule, proper segmentation, mobile-friendly design.

What doesn’t work: constant selling, purchased lists, infrequent irregular sending, one-size-fits-all content.

Some businesses work with Team400 to develop email strategies and automation workflows that convert. The software enables execution; strategy determines results.

Choose an email platform based on your primary use case: e-commerce (Klaviyo), creator content (ConvertKit), complex automation (ActiveCampaign), or simple affordable marketing (MailerLite). Don’t pay for features you won’t use. Don’t cheap out on deliverability.

Test deliverability before committing. Send emails to multiple email providers (Gmail, Outlook, Yahoo) and check spam folders. If your emails consistently land in spam during trials, they’ll land in spam after you pay.

The right email platform combined with solid strategy and consistent execution drives more results than any single marketing channel most businesses use. Email isn’t dead; bad email is dead.