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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?

Meanwhile, the "connecting" or "Checking for mail..." just stays on the bottom status bar of the mail app. I deleted the Apple Mail clear Outlook credentials manager app from the phone, reinstalled from the App Store. So only wait when some "smarties" from apple IT solve problem in app ... Apple programmers use no CD/CI - simple sometimes update by "sales-manager requests", and without any critical-bug-checks ... Full cleanup of ALL accounts is not a solution(and re-add even helps not).

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 Not Sending or Receiving Email 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)

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. When you right-click one of the folders that doesn't show new mail unless you select it, Properties, is the box 'When getting new messages... It's usually not checked by default for IMAP to minimize network traffic.

Suspect some Apple Dev's have been lazy with some code in IOS18's mail.app and its causing the issue.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.The account is used as IMAP in all customer support clients, every time you set up the mail in anyones computer it just sync 30-50GB ost files...For example, you can disconnect from the Internet and make changes.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 Outlook Login Issues Troubleshooting 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?

Microsoft, gmail and other popular accounts should sync automatically, but if they don't, I'm inclined to think it's due to the VPN or a security/antivirus app that is scanning the TB profile folder. But many users run into the problem where their important IMAP folders are not syncing or stop updating. That’s why, here I am to help you in this situation by providing you with solutions. But, before that, let’s understand the cause of the issue.