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SMTP Email Delivery & Transactional Email API | SMTP.com — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Email →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
smtp.com ↗	85 match shared topic	SMTP Email Delivery & Transactional Email API \| SMTP.com	en	email WordPress	robotsllmsaihumans	emailphone	none
postmarkapp.com ↗	75 match shared topic	Postmark: Fast, Reliable Email Delivery Service \| SMTP \| API	en	email	robots llmsaihumans	emailphone	none
smtp2go.com ↗	75 match shared topic	SMTP2GO: Reliable & Scalable Email Delivery Service & API	en	email WordPress	robots llmsaihumans	emailphone	none
hover.com ↗	65 match shared topic	Domain Names \| Buy Domains & Email At Hover.com	en	email	robotsllmsaihumans	emailphone	none
authsmtp.com ↗	65 match shared topic	Outgoing authenticated SMTP server and email relay service (solves most SMTP and email relay errors).	en	email	robotsllmsaihumans	emailphone	none
memail.com ↗	65 match shared topic	MeMail \| Personal and Professional Email Address Accounts with Personality — MeMail.com	en	email	robotsllmsaihumans	emailphone	none
mail.com ↗	65 match shared topic	Free email accounts with mail.com \| Log in here or register today	en	email	robotsllmsaihumans	emailphone	none
mailjet.com ↗	65 match shared topic	Mailjet: Best Email Marketing Software & Email API for Teams	en	email WordPress WooCommerce	robotsllmsaihumans	emailphone	none
northameri.com ↗	65 match shared topic	North America NA NorthAmeri.com Email & Services	en	email	robotsllmsaihumans	emailphone	none
email-guru.com ↗	65 match shared topic	EMAIL GURU - How to become an email pro	en	email WordPress	robotsllmsaihumans	emailphone	none
gmx.com ↗	65 match shared topic	Free Email Accounts @GMX.com: Secure & easy to use	en	email	robotsllmsaihumans	emailphone	none
turainvite.com ↗	65 match shared topic	TuraInvite - Send invite emails via API	en	email	robotsllmsaihumans	emailphone	partial · 6
sendsafe.to ↗	65 match shared topic	Secure, HIPAA-Compliant Emails for Healthcare Professionals \| SendSafe by MailHippo	en	email WordPress	robotsllmsaihumans	emailphone	none
roadrunneremaillogin.org ↗	65 match shared topic	Access Roadrunner Email (RR.com) - Spectrum Webmail Sign In	en	email WordPress WooCommerce	robotsllmsaihumans	emailphone	partial · 8
afterlogic.com ↗	65 match shared topic	AfterLogic Corp. — mail server, webmail client, email components	en	email Joomla	robotsllmsaihumans	emailphone	none
email-check.app ↗	65 match shared topic	Email Validation API for Real-Time Verification	en	email	robotsllmsaihumans	emailphone	none
text.email ↗	65 match shared topic	Email to SMS Gateway \| text.email — No APIs, No Code	en	email	robotsllmsaihumans	emailphone	none
email-compliance.org ↗	65 match shared topic	Email Compliance is imporant to us	en	email	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.