How to Save Email Messages from Gmail in Google Drive Folders
The Save Emails add-on lets you download your Gmail emails and file attachments to any specific folder in Google Drive. When setting up the download rule, click the “Select Drive Folder” button and the Google File Picker window will open. Select any folder in your Drive and the emails will automatically get saved inside this folder.
Download Gmail in Google Team Drive
Read here - Save Emails in Team Drives
Organize Gmail Emails in Google Drive Folders
If you are saving a lot of emails and attachments, the parent folder in Google Drive may become cluttered and difficult to manage. The premium version of Save Emails add-on lets you organize saved emails in dynamic folders based on your email messages.
For instance, you could organize emails in date-based folders or you can choose to save emails from the same sender clubbed in the same folder and so on. You can also have all emails and attachments belonging to the same email message saved in a separate folder. Or emails with the same subject line can go in the same folder.
While setting up the rule, go to the Choose Destination Folder section and select the parent folder in Google Drive. Next, go to the Drive Sub Folder input field and specify the path of the dynamic subfolder where the files would go. You need to use the double backslash (\\) to specify a folder path.
For instance, if you wish to organize files in month folders, you can say {{Year}}\\\\{{Month}}. If you need to save emails from the same sender in a common folder, you can say {{Sender}}
and a folder will be created inside the parent folder per sender.
Similarly, if you wish to save all emails of a particular thread in the same folder, you can say {{ThreadId}}
or {{Subject}}
{{ThreadId}}
Here is a list of all the variable name supported by Drive Subfolder path.
Variable
Description / Example
MessageId
Email Message Id
ThreadId
Email Thread Id
Date (format can be customized)
Message Date (e.g., 26-Feb-2017)
Day
26 (dd)
DayName
Wed (EEE)
DayNameFull
Wednesday (EEEEE)
Week
Week Number (ww)
Month
Feb (MMM)
MonthNumber
02 (MM)
MonthName
February (MMMMM)
Year
2017 (YYYY)
Sender
Sender’s Name (from the From field)
Recipient
Recipients Name (from the To field)
Subject
Email Subject

Amit Agarwal
Google Developer Expert, Google Cloud Champion
Amit Agarwal is a Google Developer Expert in Google Workspace and Google Apps Script. He holds an engineering degree in Computer Science (I.I.T.) and is the first professional blogger in India.
Amit has developed several popular Google add-ons including Mail Merge for Gmail and Document Studio. Read more on Lifehacker and YourStory