Email service providers compared

Email marketing platform with automation and e-commerce email, sold globally; owned by Intuit. The highest-demand service in our catalog.

Email marketing plus transactional email and SMTP relay on one platform; the European demand anchor in our catalog.

US-focused email marketing platform — roughly four-fifths of its search demand comes from the United States.

E-commerce email platform with marketing and automation; the e-commerce demand anchor of our 44-service catalog.

Email marketing platform positioned at the budget-SMB end of the market, with substantial European search demand.

Transactional email API and SMTP service operated by Twilio, with a separate Marketing Campaigns product; the transactional demand anchor.

Email marketing with transactional API and SMTP sending, owned by Sinch; most of its measured demand sits in Europe.

Transactional email API and SMTP relay for developer sending, owned by Sinch.

Creator-focused email marketing platform, formerly ConvertKit — convertkit.com now redirects permanently to kit.com.

Email-first marketing platform with automation; its pricing page publishes annual-billed prices only.

Newsletter publishing platform for creator-run email lists; free plan reaches 2,500 subscribers.

Multi-channel marketing platform spanning email marketing, transactional SMTP sending, and other channels.

Email marketing and automation platform with omnichannel features; pricing geo-served in EUR.

E-commerce email and omnichannel marketing platform; every paid feature is included on all tiers, which differ by volume.

The email marketing product inside the Zoho suite — the lowest captured paid price in our marketing category.

Transactional email service owned by ActiveCampaign, with API and SMTP sending for application email.

Developer-first transactional email API; a separately priced marketing product exists alongside.

Email marketing platform operating as Campaign Monitor by Marigold; domain unchanged under its current owner.

Email delivery platform combining a sending API/SMTP service with a testing sandbox; each product is priced separately.

French email marketing anchor rebranded in 2026 — sarbacane.com now redirects permanently to user.com under the Positive Group.

SMTP relay and transactional email delivery service with unlimited verified sender domains on paid plans.

Italian-anchor email marketing platform with SMTP sending, owned by TeamSystem S.p.A.

Omnichannel platform, formerly MessageBird, with email as a core product; the retired SparkPost brand now points to Bird's email pages.

AWS's usage-priced transactional email service — the price floor of our transactional category at 50,000 emails/month.

DACH-anchor email marketing platform from CleverReach GmbH & Co. KG; nearly all measured demand is European.

Email marketing and automation platform, now a Constant Contact company; domain unchanged.

Long-running independent email marketing platform in the SMB segment of our catalog.

UK-anchored email marketing and automation platform; email is the core channel of a broader cross-channel product.

Transactional email API and SMTP service from the makers of MailerLite, with per-volume pricing in USD.

Spanish-anchor email marketing platform with SMTP sending and a measurable Latin American demand share.

Spanish email and SMS marketing platform; a tier-3 catalog entry pending its first test cycle.

Retired transactional email brand — sparkpost.com now redirects permanently to Bird's email product page.

Email marketing platform in the long tail of our demand ranking; catalog entry ahead of its first test cycle.

Email marketing platform operated by Polaris Software, LLC; a tier-3 catalog entry awaiting testing.

Email platform selling a transactional API and a marketing product separately; slated for both test protocol lines.

Email and marketing automation platform in the tier-3 long tail of our catalog.

Portuguese omnichannel marketing platform with email as its core channel and demand split across Portugal and Brazil.

Brazilian marketing automation platform with email marketing as a core product.

Email platform for SaaS teams; a newer brand whose measured demand figure is a floor.

Brazilian email marketing platform in the tier-3 long tail of the catalog.

Argentine email marketing platform, a DonWeb product, serving the Latin American market.

Email marketing platform at sender.net; brand demand is hard to measure because the name is a generic word.

Latin American email marketing platform whose brand domain is fromdoppler.com.

E-commerce email marketing and automation platform at drip.com; brand search demand has largely faded.