How to extract email document by using AI

Two options to get email -

Poll a mailbox with the MSGraph Email Poller plug-in (recommended)
Needs a common/shared Outlook mailbox to poll. You get the full .eml file saved as a document plus structured data, so it's the best option for tracking everything and replaying if a process breaks. Best fidelity for from/to/cc, attachments, and audit.
https://community.appian.com/b/appmarket/posts/msgraph-email-poller
Expose the process model to receive email (native, no mailbox)
Send email straight to the process address. Body, [key][value] pairs, and attachments land in process variables. No plugin or shared mailbox needed, but no true .eml, weak header fidelity, unencrypted, and duplicate Message-IDs are ignored for 24h. Fine for low volume / non-sensitive.
https://docs.appian.com/suite/help/26.8/Sending_an_Email_Message_to_a_Process.html

Overview (both approaches): https://docs.appian.com/suite/help/26.8/email-in-appian.html

Thanks for the swift response shubhama