Gmail Backup & Recovery

Google Workspaces (formerly G Suite) Gmail can be lost due to human error, sync errors, accidental deletions, malicious acts, and malware, and also when an account is accidentally, and or maliciously deleted.

• Human error and accidental deletions
  Losing Gmail through human error is not uncommon. “Tidying up” by emptying the Gmail Trash Bin, incorrectly configuring a Gmail migration from one account to another, admins deleting a Gmail account in error, deleting an email by accident and finding it’s gone forever due to storage limitations. Google “soft” deletes in Trash followed by a “hard” delete where Trash is emptied and data is deleted forever.
• Sync errors
  It’s possible that Gmail can be lost due to sync errors. For example, Google cautions about failed syncs with Outlook may lead to data loss. “Resynchronizing with Google overwrites local data with data stored on Google’s servers, rather than just performing a two-way sync. This means that, in rare cases, you might lose recent changes made in Outlook, such as a contact you just edited, if the change hasn’t had a chance to sync with the cloud.”
• Malicious acts 
  Insider attacks from a user, such as moving all Gmail to Trash and then emptying it, can make it impossible to recover Gmail. Insider attacks from a rogue admin can do even more wide-ranging damage if Gmail and Drive accounts are deleted. Google can’t tell that the permitted act is malicious, and Gmail can be wiped out at compute speed.
• Malware. 
  Malware can potentially delete Gmail, use phishing to make it seem as if the Gmail is trusted, or make Gmail inaccessible unless you pay the ransom. Even strains of malware, like Locky, that are thought to be successfully blocked by anti-virus updates evolve and pose new risks.