After a minute, it was removed so just went and re-added it and BOOM. One other thing I would check for is corrupted OST files. Turn off cache mode, delete or rename the OST file, and then turn cache mode back on.

Additional resources

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 have seen this disparity for years across different Outlook client versions and Windows versions. I also posted on fix Outlook after Windows update issues the Gmail subreddit about a year ago.

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Creating a new OST file clears up a host of weird problems with Outlook. This also caused some issues as outlook did not know where to store deleted or sent items and through up several errors. What about changing the root folder path, in account settings, to "Inbox". It seems to do the send and Exchange connectivity diagnostic receive and get new mail when in offline mode, but not when online.

Chosen solution

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. I am also running QuickFolders and its the same nothing shows up on those tabs until i physically click on them. 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. I right click a folder and Properties and it take me to attached windows.

My accounts in Mail app stopped to sync post update

While these solutions work, there is are chance that it will happen again. To avoid that, you have to take some solve Office 365 mailbox sync delays precautionary steps. Pit Stop - Most of our email accounts are for small retail location. We just use POP in those locations because they do not access their mail from any other device or location.

Delete Confirmation

It will synchronize deleted items if I delete an item from my phone, but it just wont receive new ones. IMAP accounts should update automatically on send/receive. 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. When you are accessing Gmail via the web application everything is hosted on Google's cloud servers.

• Apple programmers use no CD/CI - simple sometimes update by "sales-manager requests", and without any critical-bug-checks ...
• Maybe some encoding behavior or just a different linefeed or something that has changed over the years...
• But many users run into the problem where their important IMAP folders are not syncing or stop updating.
• I would suggest that frequent changes to folder contents on multiple devices will make it go wrong.
• It's just a little bit technical, but we have an IMAP proxy that chooses from some different backend IMAP servers.
• When you are dealing with any problem, it is important to understand the reasons behind the issues.
• 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.

Hate to be a Debbie Downer, but why are you using IMAP? A primary way to compromise an O36 user is phish a user, steal their creds, and connect via IMAP to get a copy of a whole mailbox. By reporting abuse, a moderator will be asked to review the content of this interaction to take further action, if necessary.

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

If the proxy directs requests to a newer IMAP server implementation (f.i Cyrus imapd 3.6.1), the iOS 18 Mail app works as expected, even the requests are handled by the same IMAP server proxy. Suspect some Apple Dev's have been lazy with some code in IOS18's mail.app and its causing the issue. Decided to just try completely removing my Gmail account, the one that wasn’t syncing with the Mail App after the iOS 18 update. I know this is not very helpful, but we ran into exactly the same issues as you with one of our clients using Outlook 2010/Win7 and Godaddy’s IMAP mail and never truly figured it out.

Outlook not syncing IMAP emails

Everything works great for the most part, except with our IMAP users. IMAP users are not receiving new email into their inboxes unless they either click off of Inbox and back on, or close outlook and reopen. These are the common reasons why the IMAP folder is not syncing.