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Postgrid alternatives & similar sites

PostGrid - Offline Communication Platform & API - Australia - Direct Mail Automation & Address Verification/Validation Software — 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
inboxsure.io ↗	67 match 1 shared topics	InboxSure - Stop Bounces. Start Conversations. \| Email Verification SaaS	en	email	robotsllmsaihumans	emailphone	none
emailjet.be ↗	67 match 1 shared topics	Mailjet: Best Email Marketing Software & Email API for Teams	Belgium en	email WordPress WooCommerce	robotsllmsaihumans	emailphone	none
1-email.com ↗	67 match 1 shared topics	1-Email.com — Email Verification API for Developers	en	email	robotsllmsaihumans	emailphone	none
bademails.com ↗	67 match 1 shared topics	Email Verification Solutions \| Emailable	en	email	robotsllmsaihumans	emailphone	none
incemlb.com ↗	67 match 1 shared topics	Email Verification Solutions \| Emailable	en	email	robotsllmsaihumans	emailphone	none
thinkemailable.com ↗	67 match 1 shared topics	Email Verification Solutions \| Emailable	en	email	robotsllmsaihumans	emailphone	none
impressionwise.com ↗	67 match 1 shared topics	Real-Time Email Verification & Threat Protection - Impressionwise	en	email	robots llmsaihumans	emailphone	none
third-party-api.com ↗	67 match 1 shared topics	Email Validation API \| emailvalidation.io	en	email	robotsllmsaihumans	emailphone	none
tossend.com ↗	66 match 1 shared topics	TosSend - Email API for Developers	en	email	robotsllmsaihumans	emailphone	none
2mailing.com ↗	66 match 1 shared topics	2Mailing: Best marketing email platform	en	email	robotsllmsaihumans	emailphone	none
inboxautomation.ai ↗	66 match 1 shared topics	Inbox Automation \| Domain & Mailbox Setup	en	email	robotsllmsaihumans	emailphone	partial · 8
spotlistmint.com ↗	66 match 1 shared topics	Listmint \| Real-Time Catch-All Email Verification	en	email	robotsllmsaihumans	emailphone	none
launchlistmint.com ↗	66 match 1 shared topics	Listmint \| Real-Time Catch-All Email Verification	en	email	robotsllmsaihumans	emailphone	none
corelistmint.com ↗	66 match 1 shared topics	Listmint \| Real-Time Catch-All Email Verification	en	email	robotsllmsaihumans	emailphone	none
inboxverifier.com ↗	66 match 1 shared topics	Inbox Verifier \| Email validation API	en	email	robotsllmsaihumans	emailphone	none
32bit.com ↗	66 match 1 shared topics	Free Bulk Email Software	en	email	robotsllmsaihumans	emailphone	none
360reachout.com ↗	65 match 1 shared topics	360 ReachOut – Smart Email Marketing & Verification	en	email	robotsllmsaihumans	emailphone	none
aezleia.uno ↗	65 match 1 shared topics	YOPmail - Disposable Email Address - Anonymous and temporary inbox	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.