Run TB in safe mode (hold Shift when you launch TB) and see if it makes any difference. Note also that when you click Get Messages, only the currently selected account is checked; click the drop-down to check a specific account or Get All New Messages (Shift+F5). The setting isn't present for folders that are automatically checked, such as Inbox. See the attached picture for the Properties window for a user-created folder. If these methods do not work, then contact the support team of your email provider. So, here are the solutions you solve the problem of the IMAP folder not syncing.

Why IMAP Folder is Not Properly Syncing?

Meanwhile, the "connecting" or "Checking for mail..." just stays on the bottom status bar of the mail app. I deleted the Apple Mail Online Outlook Email Repair Utility app from the phone, reinstalled from the App Store. So only wait when some "smarties" from apple IT solve problem in app ... Apple programmers use no CD/CI - simple sometimes update by "sales-manager requests", and without any critical-bug-checks ... Full cleanup of ALL accounts is not a solution(and re-add even helps not).

Chosen Solution

Furthermore, when calendar invites are accepted using the Outlook client, they disappear from All Mail and go into the Trash folder, but when using WebMail, they remain in the Inbox. I rebuild Outlook data file quickly have seen this disparity for years across different Outlook client versions and Windows versions. I also posted on the Gmail subreddit about a year ago. After instalation ios 18 all my accounts in mail app stopped to sync( including icloud mail). I can only recive mails but when I delete mails on macbook they are not deleted on iphone. If an IMAP Inbox isn't displaying new messages as they arrive at the server, but only when the Inbox is selected, there is something wrong with the setup.

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

When you synchronize mail using IMAP between Gmail and a desktop mail client such as Outlook, there is a necessary delay between changes made independently at both ends being synchronized in both directions. When you are accessing Gmail via the web application everything is hosted on Google's cloud servers. So it must be something in IMAP protocol handling on the old server that makes the iOS Mail app go out of sync or crash the syncing mechanism on the iOS device. Maybe some encoding behavior or just a different linefeed or something that has changed over the years... Otherwise why even have the ability to auto-sync? If I need to click on each folder to force the sync/download from server then auto sync serves no purpose.

• See the attached picture for the Properties window for a user-created folder.
• 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

The problem is that the some changes are not reflected in the Gmail web app. By rebuild Outlook data file quickly 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.





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...