The search tool will work fine for this. Use the find routine (CTRL+F) to open the find dialog With the wildcards box checked and the highlight all found entries box checked . . .
Search for . . . . [a-zA-Z0-9\-_.]{1,}\@[a-zA-Z0-9\-_.]{1,}
The e-mail addresses will be highlighted.
Close the find dialog. Then copy to the clipboard.
Open a new document and paste.
120 OLD FREEMANS WAY, BREWSTER, MA 02631 MAILING: P.O. BOX 2342, BREWSTER, MA 02631 PHONE (774) 323-3176