Forum Discussion
Displaying a warning message when sending emails to external recipients with attachements
Is it possible to 'display a warning message to users when they try to send attachments to external recipients' using AIP.
Not with AIP, but you can configure Exchange mail tips: https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/mailtips/mailtips#mailtips-in-exchange
Mail tips however are only shown on the desktop Outlook client and OWA, so they might not be the best fit. DLP policy tips only work with sensitive data, so also not the best solution. Lastly, you can configure transport rules to detect such messages, but they cannot trigger in-client notifications (only for DLP sensitive content).