[Dovecot] Delete messages with archivemail

Hi,

I have set up a dovecot imap server (Version 1.0.15 on Debain Lenny).

Until know I used courier.

Every night I run a script calling archivemail ( http://archivemail.sourceforge.net/) to delete all messages in the Spam folder that are older than 30 days

archivemail deletes the files directly in the Maildir folder. I am not using IMAP for this (cause I don't want to store the passwords in plain text).

I know that dovecot uses index files to speed up Maildir access. Will there be any problems with the index files when I delete the old spam like this?

Cheers Mario