Outlook for Mac sync error code 1025

Question

I've been receiving sync error code 1025 in Outlook for Mac. I've been dealing with it for months, trying every solution I've found on the web, but with no resolution. I thought I could solve the problem by switching to the New Outlook. The sync problem appeared to be resolved when I did that, but even though my email accounts are all IMAP, I was unable to move emails into folders (something I must be able to do). I had to switch back to legacy where the sync problem continuedI would appreciate guidance in resolving this issue once and for all.

Answer 1

I never use OWA, so there is no way to compare sync issues.

As far as deleting the account, both the "-" sign and the delete keyboard button only sign out of the account. I've tried that multiple without it resolving the issue. I don't see an obvious way to actually delete the account so I can start from scratch.

I've attached a screen shot of the error messages.

Answer 2

Dear Philip Kassel

Good day! Thank you for posting to Microsoft Community. We are happy to help you!

First of all, we apologize for the trouble and inconvenience caused to your work. Based on your description, please first kindly try to remove your account and then re-add it in Outlook for Mac client. To remove your account, please follow the steps below. Before you remove the account, please backup all data in your account to avoid data loss.

1. Start Outlook.
2. On the Toolsmenu, click Accounts.
3. Click the account you'd like to remove, and then click the minus sign ("-") icon in the lower-left corner or press the Deletekey on your keyboard to delete the account.

Also please kindly try to use your account to login OWA(outlook web app) to check whether it has the same error, thanks.

If your OWA don't have the same error, then please kindly try creating a new profile and then check the result, thank you.

Meanwhile, if your problem persists, please kindly share a complete screenshot which includes error information and error code you got with me, thanks.

Thanks in advance for your understanding! Your patience and cooperation will be highly appreciated. Hope you all the best!

Sincerely,

Kerry Chen | Microsoft Community Moderator