Their webmail works fine, and when this account is added to the Windows Mail app, everything works perfectly. These are the common reasons why the IMAP folder is not syncing. To resolve the IMAP issue, I will explain different solutions in the upcoming section of the article. It's just a little bit technical, but we have an IMAP proxy that chooses from some different backend IMAP servers. If the user account ends up on an old IMAP server implementation (in that case f.i. a Cyrus imapd 2.4.17), IMAP Client of iOS 18 Mail app doesn't work. 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.

Why IMAP Folder is Not Properly Syncing?

My VPN was working in the background, even though the file was closed. That means that Mail app fully connected to server , asked for statuses, but not Troubleshoot Office 365 Sync and Login Issues displaying anything. Create your account and connect with a world of communities.

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 FixTechGuide Outlook repair tutorial 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)

Microsoft Outlook is terrible in IMAP. Hence most people only use MAPI with it. If you are forced to use IMAP, I would recommend switching to an alternative E-Mail client like Thunderbird Thunderbird — Free Your Inbox.

• Meanwhile, the "connecting" or "Checking for mail..." just stays on the bottom status bar of the mail app.
• I will try the safe starts and experiment with the buttons ans see if it improves.
• My VPN was working in the background, even though the file was closed.
• I deleted the Apple Mail app from the phone, reinstalled from the App Store.
• After instalation ios 18 all my accounts in mail app stopped to sync( including icloud mail).

My accounts in Mail app stopped to sync post update

When you are dealing with any problem, it is important to understand the reasons behind the issues. Below are some causes that contribute to the problem. There are various variables at play here however, generally speaking, Outlook performs best when operating as a front end for Microsoft Exchange and Gmail when accessed via a web browser. 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. If work offline mode stuck you can, turn off IMAP, require 2FA, and use the native outlook client. Hate to be a Debbie Downer, but why are you using IMAP?





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...