Email verification for SaaS
SaaS companies live or die by the quality of their user database. A fake or disposable email at signup means a bounced welcome message, a dead trial, and skewed activation metrics. Verifying every address before it enters your product keeps your onboarding, analytics, and sender reputation reliable.
Why it matters
- Welcome emails bounce because of typos or fake addresses
- Trial accounts use disposable inboxes to abuse free tiers
- CRM and product analytics are polluted with invalid contacts
- Support and nurture sequences reach dead mailboxes
What VeriMailX solves
Signup-form validation
Check emails in real time as users type, so only reachable addresses make it into your product database.
Trial-to-paid hygiene
Clean your trial user list before nurture sequences and sales outreach so reps focus on real prospects.
Bulk list cleaning
Upload existing user or lead CSVs and remove invalid, risky, and disposable addresses before major campaigns.
API-first workflows
Integrate verification into signup, invitation, and billing flows with a simple REST API and webhooks.
How VeriMailX helps
- Real-time SMTP, MX, syntax, disposable, and role-based checks in one API call
- Bulk CSV uploads for quarterly database cleanups
- Per-project API keys with usage and rate-limit visibility
- Free 2,000 validations to validate the integration before scaling
Frequently asked questions
- Can I verify emails in my signup form without slowing it down?
- Yes. The VeriMailX API returns results in milliseconds, so it can run synchronously during signup or asynchronously in the background.
- Does it stop disposable email addresses?
- Yes. Disposable and temporary domain detection is built in, so you can block or flag trial-abuse addresses at the point of capture.
- Can I clean an existing user list?
- Yes. Upload any CSV of existing users or leads and download the same rows with verification status appended.
- Is there a free tier for startups?
- Every new account gets 1,000 free validations, which is enough to test the API and clean a small early-user list.
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No card required. Single checks, bulk CSV and API access included.
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