Inbound vs email-validation.org

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Inbound compared with email-validation.org
Detail	Inbound	email-validation.org
What it does	Email infrastructure for developers to send, receive, and reply to emails through one API	Email validation at extreme speed and accuracy
Stage	Not given	Startup
Founded	Not given	2026
Based in	US	US
Pricing model	Paid	Paid
Pricing	Default: $9/month for 5,000 emails/month with basic support; Pro: $15/month for 50,000 emails/month and 50 domains; Growth: $39/month for 100,000 emails/month and 300 domains; Scale: $79/month for 200,000 emails/month and unlimited domains. Additional domains cost $3.50/domain/month, and additional	Credit packs from $35 for 10,000 credits ($3.50 per 1,000) to $8,000 for 50,000,000 credits ($0.16 per 1,000). Up to 500 free credits on sign-up (100 with free email providers). 15% bonus on first 3 payments. No subscription. Unknown results free. Credits expire 24 months after grant.
Key features	Transactional email sending for receipts, notifications, and transactional messages at scale Receive email to endpoints as structured JSON with headers, text, HTML, and files Threaded conversations with full context across replies and participants Webhook delivery with logs and one-click retries API keys, webhook verification tokens, and rate limits for security Guard rules to filter and route incoming email with AI-evaluated rules on Pro plans and above TypeScript SDK and REST API Spam filtering with verdicts and bounce suppression list Custom domain configuration with guided DNS setup	Single address checker with 5 free checks daily Bulk list upload up to 1 million rows in CSV, XLSX or TXT REST API with OpenAPI 3.1 spec, webhooks and SDKs Five status results: valid, invalid, catch-all, unknown, disposable 15-second timeout on mail server checks Serverless infrastructure on Cloudflare Workers 12-month answer caching for repeat checks EU data residency option 99.2% accuracy guarantee on bulk list results Passkey and Google Sign-in authentication
What makes it different	One unified API for sending, receiving, and replying to emails in the same thread Email automatically converted to structured JSON for easy processing Unlimited mailboxes included on every plan Affordable pricing starting at $9/month with no hidden fees Email routing to any endpoint with catch-all support	Fast results from Cloudflare edge network with 15-second ceiling No email is sent to addresses during validation Lists automatically deleted after 30 days No passwords with passkeys built in
Community votes	0	0
DR (Domain Rating by Ahrefs)	51 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	7	0
Citation Flow (Majestic)	33	0
Referring domains (Majestic)	117	0

6 details filled in for both companies.

More alternatives to Inbound More alternatives to email-validation.org