AODocs for Gmail™ lets you export email messages directly from Gmail™ to AODocs.
Depending on your AODocs license, you will be able to:
• Export a single email you received or composed to an AODocs library
• Choose to export the EML file, body, and/or any email attachments
• Automatically fill AODocs properties with email metadata (Sender, Recipients, Send date, Subject)
• Export batches of emails based on rules

Learn more: https://support.aodocs.com/hc/en-us/sections/4702303062427-Gmail-add-on