Navya Singh
New member
The Outlook certificate error often appears when the mail server settings are incorrect, the certificate has expired, or the domain does not match the server address. This issue can interrupt secure email access and create repeated warning messages. Understanding the root cause helps restore smooth and safe communication. In cases where data becomes inaccessible during troubleshooting, reliable utilities such as Outlook PST Repair can assist in securing and repairing mailbox files effectively.