truemail-rb/truemail

Health v2 · maintenance only

Adoption not part of the score

1274 stars · 71 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Truemail is a configurable, framework-agnostic plain Ruby gem for validating and verifying email addresses. It validates emails via regex, DNS/MX lookups, SMTP checks, and whitelist/blacklist rules to confirm an address is both valid and exists.

Use cases

• validate email addresses in a Ruby on Rails signup form
• check whether an email address actually exists via SMTP
• verify MX records for a user's email domain
• block disposable or blacklisted email domains at registration
• validate email format with a custom regex pattern
• clean up email lists before sending campaigns

When to choose

• you need deep email verification beyond simple format checks (DNS, MX, SMTP)
• you want a framework-agnostic Ruby library with configurable validation layers
• you need whitelist/blacklist and MX blacklist controls

When to avoid

• you are not working in Ruby
• you only need lightweight client-side email format checking
• you need a hosted bulk email verification API with deliverability scoring

Facets

library · maturity stable

email form-handling security email web-development developer-tools ruby email-validation email-verification smtp-validation dns-validation mx-validation regex-validation ruby-gem framework-agnostic

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markdown · JSON · MCP: product_card(name="truemail-rb/truemail")