I. Intro

The email migration process might be affected by your previous email account settings.

The following tips will help you fix the most common problems that you might encounter.

II. Emails that can't be migrated

Some emails may fail to be migrated because their formats are not compatible.

Category	Description
Drafts	Emails in the Drafts folder
Outlook groups	Only applicable to Outlook users. Outlook groups are exclusive to Outlook and relevant data can't be migrated.
Renamed folders	Emails in a renamed folder can't be migrated if the folder has been renamed to one of the following: Inbox Sent Drafts Junk mail Deleted
Large emails	The size of a single email (including its attachments) is more than 150 MB
Special emails	For example, promotional emails in a certain format

Tips for email migration

You will receive a notification of login from a different location in your original mailbox during email migration. Don't be alarmed, for it is triggered by migration.
Don't change your email account password. Otherwise, email migration will fail.
During the email migration, don't move emails to other folders. Otherwise, some emails may fail to be migrated.

III. Troubleshooting

Error occurs during email migration

Problem: An error occurs during email migration. This is usually caused by a password change in the original email account.

Solution: The mailbox owner needs to go to Lark Mail where a red warning bar is shown at the top. Click the bar and re-enter the password to solve this problem.

Migration progress stuck at 0% for a long time

Refresh the page to see whether the progress is updated.

In general, you should see some progress after 5 minutes of processing. If progress is always at 0%, please contact the email support team.

Some emails failed to be migrated

Please check whether these emails support migration.

If the emails in question support migration, please contact the email support team.