
If you can take a look at your mail server settings specifically the IMAP and SMTP. Make a note of the values and delete an overwrite them also check your passwords for both SMTP and IMAP. Make sure they are the same if you can’t see them look at the number of stars or dots.
Why IMAP Folder is Not Properly Syncing?
Please report suspicious activity using the "Report Abuse" option. Windows 10 will reach EOS (end of support)
fix MFA prompts not working on October 14, 2025. For more information, see this article.
Chosen Solution
I work in a small company and for the past 2 weeks we've been having issues with customer support Outlook account. The account is used as IMAP in all customer support clients, every time you set up the mail in anyones computer
send/receive error 0x800CCC0E fix it just sync 30-50GB ost files... And because of the size, this is making the mail simply stop working after one day of normal use, forcing the users to end outlook process to make the mail sync again properly... But only when you close/open the mail again.
IMAP folder sync issue in the new Outlook (moved emails not syncing to webmail)
If the server is down and you are experiencing issues, the problem IMAP folder is not syncing occurs. So, check the status of your IMAP server follow the steps below. These a general steps to check your IMAP settings in any email application. With the help of this, you can also ensure that the server settings are properly configured or not.
- Ok so my mistake the Properties option is there when right clicking folder - I was only focused on right clicking on the email address to take me to server setting I was not clicking on the actual folder.
- The account is used as IMAP in all customer support clients, every time you set up the mail in anyones computer it just sync 30-50GB ost files...
- For example, you can disconnect from the Internet and make changes.
- So, here are the solutions you solve the problem of the IMAP folder not syncing.
- But only when you close/open the mail again.
- I access the IMAP servers from 3 different machines, and they all see the changes from each other.
My accounts in Mail app stopped to sync post update
The problem is that the some changes are not reflected in the Gmail web app. By
repair PST file without data loss web app, I mean webmail accessed via Firefox or Chrome for (say) Windows 10, not smartphone app. To set up a mail account, we can set the same standard name "mail.mydomain.com" as the incoming and outgoing mail server. My comment about 3rd party email -- is a 3rd email app called Email - Edison Mail (from the App Store) I set up my mail accounts in the app and everything works as it should. I’ve tried repairing the data file, removing and re-adding the account, rebooting, re-installing Outlook/Office, running SFC/DISM, all to no avail.

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Mohit is a Microsoft Certified expert for all things Microsoft. He brings a unique perspective gained from nearly a decade of active participation in various IT forums, blogs, and social media. Through this hands-on experience, he has acquired knowledge in diverse domains like Microsoft 365 Cloud, On-Premise Exchange Server, AD, and Entra ID. At first, I was thinking it may be an issue with certificates, but it's not... I went to a bunch of online TLS tests and the mail server is fine and the certificates are trusted...