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?

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Chosen Solution

I work in a small company and for the past 2 weeks we've been having issues with customer support Outlook account. The account is used as IMAP in all customer support clients, every time you set up the mail in anyones computer Outlook data file cannot be accessed it just sync 30-50GB ost files... And because of the size, this is making the mail simply stop working after one day of normal use, forcing the users to end outlook process to make the mail sync again properly... But only when you close/open the mail again.

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

The responsables of the mail told us to move all the mails from past years to a new account to reduce it's size, but after doing that it doesn't seems to be working. This problem isn't anything new, this happens every year or so, but this time it just isn't getting fixed. By reporting abuse, a moderator will be asked to review the content of this interaction to take further action, if necessary. 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.

• I also posted on the Gmail subreddit about a year ago.
• 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.
• 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.

My accounts in Mail app stopped to sync post update

Simply making a change in Outlook does not in and of itself mean that anything has changed in Gmail. For example, you can disconnect from the Internet and make changes. Outlook needs to explicitly reach out to Gmail and communicate FixTechGuide Windows update Outlook fix the changes you've made. I would suggest that frequent changes to folder contents on multiple devices will make it go wrong. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. This anomaly also occurs when using the hosting system (first type), using different names for inbound and outbound servers.

Get email updates

Wonder if the vpn is causing an issue. Perhaps something in TB needs to be tweaked. I have no firewall monitors running during the day that would interfere just the vpn. I have several email accounts / IMAP set-up. So looking at my tree of email accounts one inbox might have 10 mail total and 3 unread form earlier.