alcionai/corso v0.18.0

on GitHub

Fixed

• Handle the case where an email cannot be retrieved from Exchange due to an ErrorInvalidRecipients error. In
  this case, Corso will skip over the item but report this in the backup summary.
• Fix ErrorItemNotFound errors when restoring emails with multiple attachments.
• Avoid Graph SDK Requests must contain extension changes exclusively errors by removing server-populated field from restored event items.
• Improve Group mailbox(conversations) backup performance by only downloading new items or items with modified content.
• Handle cases where Exchange backup stored invalid JSON blobs if there were special characters in the user content. These would result in errors during restore.

Known issues

• Restoring OneDrive, SharePoint, or Teams & Groups items shared with external users while the tenant or site is configured to not allow sharing with external users will not restore permissions.