Outlook Certificate Expired Error

A security certificate issue in Outlook can be annoying, especially when you can’t get past the error and open your mail. The blog explains how mismatched certificate names, outdated certificates, and incorrect SSL settings trigger the Outlook Certificate Expired Error and offers simple checks you can try first. When these don’t fully solve the mail problem, the MSOutlookHelp PST Repair Tool helps by repairing your damaged PST file so Outlook can read it again. It supports batch repair of multiple PST files, which is helpful if you manage several mailboxes. The tool also maintains the original folder hierarchy, making your restored mailbox easy to navigate.