Re: getting email addresses

Era Eriksson suggested to Chuck Campbell:

|   formail -s formail -rzx"To:" < Mail/inbox | sort -u
| 
| should get you to a start. The first ("outer") formail just splits the
| mailbox into individual messages, and runs another formail -rzxTo: on
| each extracted message. 

The inner formails are not needed.  This will run much faster:

    formail -rzxTo: -s < Mail/inbox | sort -u