Can I provide secured, selective access to mail vaults on Vaultastic to an external auditor in an audit scenario? 

Yes, Vaultastic allows you to provide secure, selective access to mail vaults for external auditors, and this is a recommended practice to streamline audits. When you receive a data access request, you can enable read-only access to specific vaults for the auditor. 

Additionally, you can control whether the auditor can export, share or forward the data. Once the audit is complete, you can easily disable access, ensuring the process is both secure and efficient.