The Email-based Signature Verification Tool is a client-side utility designed to help users quickly inspect and validate email signatures pasted from received messages. In an era of phishing, spoofing, and impersonation attacks, many fraudulent emails still contain copied or slightly modified legitimate signatures — making manual checking time-consuming. This tool automates basic consistency and authenticity checks without uploading sensitive data anywhere.
Paste the signature block (plain text or HTML) and enter the expected sender email or company domain. The tool scans for: matching email addresses, domain consistency in links/websites, presence of common professional elements (name, title, phone, company), suspicious patterns (free email providers in corporate signatures, mismatched branding), and timestamp indicators if present. Results include a clear VALID / SUSPICIOUS / INVALID status with highlighted explanations.
All analysis happens in your browser — zero data is sent to servers, preserving privacy. It is especially useful for freelancers, small business owners, customer support teams, procurement departments, or anyone regularly receiving quotations, invoices, contracts, or approvals via email in Pakistan and globally. While it cannot cryptographically verify DKIM/SPF/DMARC (which requires email headers), it significantly raises red flags on socially-engineered or lazily-forged signatures.
Use this tool as a fast first line of defense before replying, transferring funds, or sharing confidential information. Combine it with checking email headers in your client for full protection. Simple, instant, and free — strengthen your email security habits today. (Word count ≈ 302)