Burn after reading cannot be viewed in an external email account.

Because burn after reading can only be viewed through the trade secret mail client, but trade secret mail does not limit the types of mailboxes users can use. As long as the user has any email account and opens the corresponding email protocol, he can log in the trade secret email with his existing account, and send or view the burn after reading the email. The person in charge of burn after reading products said that the burn after reading function can be used in all scenarios that require email transmission, and its application scope includes confidential information transmission, scheme pre-examination, bidding and other confidential information.