
Sometimes, using IMAP or POP is unavoidable. Throttling will occur and slow down your email system and email application.įrequently compact, or archive your mailbox, especially if you have a large mailbox. Now, follow the step by step process of the Thunderbird to Office 365 software to directly save Thunderbird files in Office 365 account: Step 1. However, if you do decide to configure your client via IMAP, the below suggestions may help mitigate some of the performance issues.ĭo not sync all folders locally if you have a large mailbox. If you have any questions, feel free to post it here and we'll be happy to assist you. Kindly follow the steps provided on this article on how to export files then import to the mail application. After users are synchronized, you will need to assign them Office 365 usage licenses. Hello, You can sync files from to Thunderbird by exporting the needing files. If your email client is configured via IMAP, Outlook Web App will show drafts and duplicates of messages you've already sent. Watch the password expiry date on the Office 365 administrator account that you use for DirSync.Only the "Read/unread" and "Important" flags are available. Most system message flags and all custom flags are not supported. In the User name field, enter your address. Select the On the Network option and then Next to continue. Throttling is controlled by Microsoft and cannot be changed, adjusted, or removed Click on the menu icon in the top right corner of the Thunderbird window. Loss messages due to data throttling which occurs when you are attempting to move mail.


HUIT does not recommend using IMAP or POP to connect to your Office 365 Outlook mailbox. Email clients that are configured via IMAP will experience a variety of limitations, security and performance issues.
