I notice that Password field in mail activities like Get IMAP Mail Messages and Send SMTP Mail Messages are just String instead of SecureString.
This is disadvantageous. First of all it reveal password*. Secondly it disallow centralization of asset data. For example, I cannot centrally store password on Orchestrator and use Get Credential activity to retrieve it.
Please kindly consider making change to these activities by changing Password field data type from String to SecureString.
*There is similar question about encrypting password. One recommendation is to use GetPassword activity but the output string is still totally visible.