Email Address Syntax Validator
Bulk-validates email syntax. Doesn't check deliverability (that requires SMTP probes); flags syntactically broken addresses that would bounce immediately.
Checked. Now see who reads what you send.
A clean setup gets your email delivered. Outsolvi covers what happens next: every open graded as a person or a machine, who clicked and who replied, and follow-ups that stop when someone answers. From $7/user/mo billed yearly, 14-day free trial.
Start free trialSplits input on newlines, runs each through RFC 5322-compliant syntax check, returns the list with valid/invalid status and reason for invalid.
Before importing a list into your sending tool. Quick triage on a list of scraped or manually-collected addresses.
FAQ
Does this verify the address actually exists?+
No. Syntax validation only, checks the format is valid. To verify the address exists on a real mail server, use a deliverability-check service (NeverBounce, ZeroBounce, Hunter.io).
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Articles, glossary entries, and other tools on the same topic.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi grades every open as a person or a machine, in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.