Extrair Email do Gmail

The Email Extractor add-on for Gmail sifts through email messages stored in  your Gmail account and extract names and email addresses from the FROM, TO, CC and BCC fields of the email message. It can also find email addresses in the message body and subject line.

The emails are saved in a Google Spreadsheet that can be exported as CSV for importing in Google Contacts or a mailing list. The add-on is useful for extracting email addresses from PayPal receipts, contact forms, order confirmations, and legacy email messages.

https://chrome.google.com/webstore/detail/email-address-extractor/kafpofaomkigncgeihallnooonbkdbpa

Written by @labnol using Google Scripts.