How to build a base for sending email from messages from the mail?

Question

Email

Hello. Can you tell me if it is possible to collect a database of contacts from all the letters sent to me? in the mail more than 5 thousand letters to do it manually is very problematic.

Answer 1

You can download all letters using The Bat! and already there it is possible to add all senders and recipients to the address book

Answer 2

You can throw a script on IMAP that requests the headers of all letters and parse senders from them.
Or you can try to google a ready-made script that you can adapt to your task.