This message indicates something is wrong with the Mail Downloads folder’s permissions. Mail has stymied some people after they upgrade macOS and try to open attachments. Instead of the attachment ...

Email still plays an important role in sending important updates, sharing important documents, and mediating professional relationships. and sending important file attachments. In the Gmail app, you ...

You can select any of the above options. If you want to open the file, click Open. As explained above, this is not an error message. It is a warning message which can ...