Hello
Can you follow the workaround published here, it should fix the issue particularly for this error:
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I'm getting an error message every time my outlook logs on and sends and receives. The error message says "task synchronizing subscribed folder for ******@gmail.com reported error..." (0x800ccc0E): Outlook cannot synchronize subscribed folder for ******@gmail.com. Error: Cannot connect to the server
Hello
Can you follow the workaround published here, it should fix the issue particularly for this error:
The error 0x800CCC0E when synchronizing a Gmail IMAP account in classic Outlook is a known issue when Outlook cannot connect properly to Gmail’s IMAP service.
From the documented issue, this can happen if the Gmail account was added to Outlook but, during the Google sign‑in in the browser, the required permission was not granted for Microsoft apps and services to access Gmail.
To resolve this for classic Outlook with Gmail IMAP:
If the Gmail account was added long ago, removing and re‑adding it (on a fixed Outlook build) and carefully granting the above permission during Google sign‑in will also ensure Outlook can connect and synchronize IMAP folders correctly.
References: