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So, follow the below Office 365 sync problems and login fixes steps to reset Microsoft Outlook settings. After the files get repaired, restart the Outlook program to ensure that the Outlook syncing issues are resolved or not. Outlook sync issues can be because of corrupted Outlook OST or PST files. Therefore, now we will know the steps to repair the Outlook data file.
Method 4: Recreating the Outlook Profile
Another which is shown below, is a user opens a new message, or replies to one, and lets it sit for a while. When they go back to the message and press send they get an error that the message has been deleted. Ive repaired the OST and changed cache mailbox not updating on IMAP mode to only cache 1 year.
Check the connectivity to your email server
This software also has a splitter option to split large-sized PST files into smaller ones, helping users prevent oversized PST file issues.You'll also receive a mail (to the alternate email and to your admin email) from Microsoft 365 that indicates your tenant has encountered directory synchronization errors.It is possible for a corrupted Outlook profile to impede synchronization.If you're using an Outlook.com, Microsoft 365, or Exchange account, you won't have advanced mailbox settings unless the account was set up using advanced setup.I’m at wits end and Microsoft stopped helping me because they feel the problem is on our end.If you can sync your email when the firewall is turned off, you'll need to allow the Mail and Calendar apps through the firewall.
When the user is signed into their mobile app, webmail, or the repair corrupted OST in Outlook Windows Mail app, they are able to receive email perfectly fine with those. The issue is occurring only in the Outlook program installed on Windows. To update from Azure AD Sync to Microsoft Entra Connect, see the upgrade instructions.
Methods to fix Microsoft Outlook syncing error
To solve your Outlook issues, download the application from the Microsoft website and follow the directions. If I check the sync log I see a lot of sync errors for Inbox, sent items and a few other folders. The most common cause of an out-of-date account is an incorrect password. In the notification bar at the top of the app, select Fix account. If your password is incorrect, you'll see a message asking you to update your password.
Microsoft Outlook Sync issues
I’ve tried the Microsoft office uninstall tool provided by Microsoft (which deletes more items then just control panel uninstall). Below are the steps I’ve taken to try to resolve this issue. Two-factor authentication helps protect your account by making it more difficult for someone else to sign in. It verifies your identity using your password and a contact method (also known as security info). Outlook will show as connected to Exchange but is not receiving any new email. This can happen for days at a time, and then disappear for a day or 2, only to appear again.