You may want to check your firewall for policies regarding IMAP. Some reference links I read thru though I don't fully understand all of what is being discussed. I have not tried the add-on yet I am going to experiment. Stack Exchange network consists of 183 QA communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 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 displaying anything.

Additional resources

To resolve the IMAP issue, I will explain different solutions in the upcoming repair PST file without data loss section of the article. To set up a mail account, we can set the same standard name "mail.mydomain.com" as the incoming and outgoing mail server. I was a little hesitant but went ahead and let it completely remove all the synced items from the account off of my iPhone.

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I have several email accounts / IMAP set-up. So looking at my tree of Troubleshoot Office 365 Sync and Login Issues email accounts one inbox might have 10 mail total and 3 unread form earlier. 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 tell if there is new mail or not until I click on them.

Chosen solution

I don't see - 'When getting new messages... I checked all 5 of the tabs in this window that expressions is not there. This seems bizarre the email would not populate. The uploading of the old messages to the new account is what caused the problem. I will try the safe starts and experiment with the buttons ans see if it improves.

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 disable faulty add-ins in Outlook 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.





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• We only have a handful of people who use the their email across multiple devices at the corporate office.
• 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.
• These methods help you in the synchronization process.
• Full cleanup of ALL accounts is not a solution(and re-add even helps not).
• Look at the mail server settings boxes for password and port settings they’re the ones you need to delete and reapply.
• So, here are the solutions you solve the problem of the IMAP folder not syncing.
• I went to a bunch of online TLS tests and the mail server is fine and the certificates are trusted...

I did see a response from a MS person that said it was working as intended, that it wouldn’t refresh the folder until it was selected. Although that seems like a load of BS, but could just be a con to try to migrate people to exchange at a higher cost. I know that sometimes when doing it, it can take a moment for the rest of the folders to kick back in. Also then you can’t make folders under the Inbox folder, you have to make it in a different folder and drag it out. 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.



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.



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. I am aware of the difference between Gmail's labels vs. Outlook's folders, but I would expect that Gmail does what is necessary to make the folders appear correct over the IMAP connection to Outlook. For example, if I drag a message from Outlook's All Mail folder to Trash, I see that message disappear from the Inbox folder after a short delay.