If you can take a look at your mail server settings specifically the IMAP and SMTP. Make a note of the values and delete an overwrite them also check your passwords for both SMTP and IMAP. Make sure they are the same if you can’t see them look at the number of stars or dots.

Why IMAP Folder is Not Properly Syncing?

Look at the mail server settings boxes for password and port settings they’re the ones you need to delete and reapply. I will try the safe starts and experiment with the buttons ans see if it improves. I am using TB for just three weeks now and I have issues daily when sending FixTechGuide Windows update Outlook fix mail with no attachments the outgoing mail server will time out. Since the sync issue is universal it appears to be a global issue.

Chosen Solution

Suspect some Apple Dev's have been lazy with some code expert Outlook tips by FixTechGuide 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)

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.

• Suspect some Apple Dev's have been lazy with some code in IOS18's mail.app and its causing the issue.
• If you are forced to use IMAP, I would recommend switching to an alternative E-Mail client like Thunderbird Thunderbird — Free Your Inbox.
• I right click a folder and Properties and it take me to attached windows.
• So, here are the solutions you solve the problem of the IMAP folder not syncing.
• But only when you close/open the mail again.
• I access the IMAP servers from 3 different machines, and they all see the changes from each other.
• That’s why, here I am to help you in this situation by providing you with solutions.

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 diagnose Office activation conflicts 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...