If you mount more than 5000 folders or mailbox folders, depending on the IMAP client that you’re using, you might not be able to view more than the first 5000 folders.
In order to avoid this situation, you should limit the number of folders that are being mounted.
For example:
- Do not mount from the company root space if you know that you have a very large folder structure. Choose a specific site to reduce the number of folders being mounted.
- Do not extract attachments to a separate folder
(imap.attachments.mode=SEPARATE), particularly for large
repositories. When you specify imap.attachments.mode, choose one of
the following settings:
- imap.attachments.mode=COMMON: all attachments for all emails are extracted to one folder
- imap.attachments.mode=SAME: attachments are extracted to the same folder as the original message