What is an advanced search email program for Mac?

Question

macOS

There is a corporate mail, there are already about 30 thousand letters. Often you have to look for what someone once wrote. You remember who wrote it, in what chain, but when you don’t remember. The chain can be 400 letters long. Therefore, I would like to indicate the sender in the search, the subject in which to search and the text that should be searched in the body of the letter.

Answer 1

Spark