Qualisend Email Verification

Qualisend verifies email addresses and cleans lists in real time to protect deliverability and sender reputation. Ask an agent to check a single address, a batch, or a whole list. Qualisend runs the full pipeline (syntax, domain/MX, disposable, role, catch-all, and a live SMTP mailbox probe) and returns a deliverable / risky / undeliverable / unknown verdict with a 0-100 confidence score. Tools (12) - `verify_email` - verify one address - `verify_emails` - verify a ba - `verify_list` - verify a whol - `get_credit_balance`, `get_ves and look up past results - `check_domain`, `generate_dnseader`, `check_disposable`,`check_typo`, `lookup_smtp_code` - deliverability tools (Pro plan) - `check_blacklist` - blacklist / DNSBL checks (Blacklist Monitoring add-on) Auth: OAuth 2.1 (connect wi no key copying) or an API key.New accounts get 100 free credits that never expire. Website: https://www.qualisend.com Docs: https://www.qualisend.com

First seen 2 Oct 2026. Evidence as of 2 Oct 2026.