Fatal error: word too long

[Ralf Schmitt <ralf@xxxxxxxxxxxxx>]

Hi,

today my imap inbox was spammed by a cronjob that produced a warning
mail every 5 min. So I had to deal with about 10 thousand mails.
I started to tag them for deletion but mutt told me..

Fatal error: word too long

while I pressed $. As long as I delete less then 1000 mails a time 
everything is fine. So is there a way to tell mutt to delete all
tagged mails in packages of 1000 mails? Or any other way?

I'm on mutt Mutt 1.5.16 (2007-06-11) using imap


kind regards
Ralf