
FIX: Outlook 0x800CCC92 Logon Failure to Office365 POP3 mail server. (Solved)
If Outlook for Windows fails to authenticate with the Office365 POP3 email server "outlook.office365.com" (error 0x800CCC92), continue reading below to fix the problem. (June 16, 2022). The last (2) days Outlook started to display the following error message when clicking at sending/receive button: "Log onto incoming mail server (POP3): Your email server rejected your login.