limiting storage of sent emails

[Richard Riley]

I am trying NOT to archive or store sent messages if the From field is a
certain value. This is not working reliably for me. Which function or method
should I use to access the correct From field? I had used the "original
article" field but that doesnt work if its the first email of a gnus
session so I guess that was not correct.

from my custom.el

,----
|  '(gnus-message-archive-group (quote ((if (message-news-p) nil (unless 
(string-match "rileyrg@" (gnus-fetch-field "From")) 
"nnimap+mymail:INBOX.sent")))))
`----

What his should be doing is ONLY archiving emails and then only if the
>From is not rileyrg@.

Any help or pointers appreciated.