All messages that were trashed in Outlook still appear in All Mail when accessed using webmail, even days later. With that said - the "delayed syncing" issue that I am experiencing is happening on Inbox as well as Junk folders. So my Junk folders do not have that box checked, but the Inbox doesn't have a box to be be checked - their behavior is the same they are both not syncing, until I manually click on them to force the sync. I have half dozen mail accounts a few microsoft a gamil and some other ones and there is no difference they are all acting the same. In this article, I have explained various ways to solve IMAP folders are not syncing.

Why IMAP Folder is Not Properly Syncing?

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Chosen Solution

Suspect some Apple Dev's have been lazy with some code Outlook OST vs PST repair in IOS18's mail.app and its causing the issue. I was a little hesitant but went ahead and let it completely remove all the synced items from the account off of my iPhone. After a minute, it was removed so just went and re-added it and BOOM. Decided to just try completely removing my Gmail account, the one that wasn’t syncing with the Mail App after the iOS 18 update.

IMAP folder sync issue in the new Outlook (moved emails not syncing to webmail)

These methods help you in the synchronization process. If this does not work, you can contact your email provider. After that, it is also important to secure your IMAP folder to prevent this issue from happening in the future. So, properly follow the above steps and backup your data from IMAP folders. When you right-click one of the folders that doesn't show new mail unless you select it, Properties, is the box 'When getting new messages... It's usually not checked by default for IMAP to minimize network traffic.

• If you can, turn off IMAP, require 2FA, and use the native outlook client.
• I also posted on the Gmail subreddit about a year ago.
• Their webmail works fine, and when this account is added to the Windows Mail app, everything works perfectly.
• I also noticed that some IMAP settings — like the root folder path (e.g. "INBOX") — are not available in the new Outlook, which makes troubleshooting more difficult.
• I would suggest that frequent changes to folder contents on multiple devices will make it go wrong.
• Subscribing to a folder makes it appear in the Folder Pane, but one might not always want a folder to be synced automatically if it is mainly an archive folder or one that seldom receives new mail.
• I’ve never heard of setting a path before for email, so apologies if this is a simple solution to those who come across this in the future.
• Simply enter your email address OR username in order to reset your password.

My accounts in Mail app stopped to sync post update

It's not until I click on that folder I will then see the 10 and 3 and two second later it will sync and new ones will populate. The issue is; just looking at my email accounts and the numbers shown next to the folders I cant FixTechGuide Windows update Outlook fix tell if there is new mail or not until I click on them. I have all desktop alerts turned off I prefer it this way I don't need all of that. I just want to be able to look and see new message. Even if I have an account with zero message I need to click to see the new ones there are no numbers appear.





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...