Outlook Deliverability Checker

The Outlook Checker is a powerful online tool that allows you to analyze Outlook email files (.msg, .eml, .pst, .ost) and raw email headers. Upload a file or paste email headers to extract key metadata such as sender, recipient, subject, date, and attachments. The tool validates the email structure, checks for common issues like spam flags or encoding problems, and provides a detailed report. It's completely free and works entirely in your browser with secure backend processing.