[plug] postfix help

[Gregory Orange]

Hi all,
I had postfix on a new server configured poorly and mail ended up in a
loop: 454 and 554 errors "too many hops"

So, I've fixed it, but now I'm curious that some of the stuck
mail - is still stuck. Can I get it out?
postsuper -r <ID>
doesn't help. I get, for example

postfix/pickup[18812]: warning: maildrop/A401233C5B: error writing
2194D33C87: queue file write error

Sure enough, there's a matching file, both
/var/spool/postfix/maildrop/A401233C5B and
/var/spool/postfix/defer/A401233C5B

Any suggestions on how to step through this?

TIA,
Greg.

-- 
Gregory Orange