I did a search on the archives and got the results which said to send this
command to retrieve all the messages:

GETPOST vanagon 19773 19785 20431 20686 21318 21597 34286 45460 45838 52630
65773 65834 66898 67206 67292 67317 69369 71405 71407 75467 76324 93437
102530 104056 107769 109443 112325 112327 119260 120409 123413 128659 131009
132418

But when I do that, I get the following error messages. Anyone know what I
am doing wrong?

 > GETPOST vanagon 19773 19785 20431 20686 21318 21597 34286 45460 45838 52630
File "VANAGON POSTINGS" has been mailed to you under separate cover.

 > 65773 65834 66898 67206 67292 67317 69369 71405 71407 75467 76324 93437
Unknown command - "65773". Try HELP.

 > 102530 104056 107769 109443 112325 112327 119260 120409 123413 128659 131009
Unknown command - "102530". Try HELP.

 > 132418
Unknown command - "132418". Try HELP.