SimpleVerifier - 2026 Pricing, Features, Reviews & Alternatives

SimpleVerifier is a cloud-based email and phone verification service designed for businesses that send email at scale, including sales development teams, cold email senders, marketing teams, newsletter operators, and agencies managing lists for multiple clients. The platform performs real SMTP mailbox checks rather than relying solely on syntax or MX record validation, returning each address as valid, risky, or invalid with a specific reason for every result. Catch-all, disposable domain, and role-address detection reduce false positives by classifying ambiguous addresses as risky rather than valid.

SimpleVerifier supports CSV uploads of up to 100,000 rows with separate exports for valid, risky, and invalid results, plus 14-day result caching that eliminates charges for re-verifying overlapping lists within that window. Additional capabilities include an email finder (name plus company domain resolved to a verified address), website enrichment (emails, owner names, and social profiles), SPF/DKIM/DMARC and blocklist checks, domain monitoring, and phone format validation with optional live carrier lookups (carrier name and line type: mobile, landline, or VoIP) available as a $20/month add-on. A REST API (10,000 calls/month on Pro, then $1.50 per 1,000) and a remote MCP server with six tools connect the service to AI agents and coding assistants including Claude, ChatGPT, Cursor, and VS Code. Native integrations cover Instantly, Smartlead, HubSpot, and Mailchimp via API key, with daily auto-verification of connected campaigns or lists.

Plans range from a Starter tier at $9/month (2,500 emails) to an Agency tier at $249/month (3,000,000 emails/month at full speed, 15 seats, and client workspaces), all on flat monthly pricing with no per-email credits or overage fees on Pro and above. Lists that exceed the full-speed volume limit continue processing at a reduced rate rather than being cut off. One hundred free email checks are available on signup with no credit card required, and a 7-day money-back guarantee applies to paid plans. Over 160 free tools for emails, phones, and domains are accessible without an account.