[Dovecot] umask problem

[Matteo]

Hi all,
i got a problem with the umask parameter.
I set it to umask=0007 because i need to access mail with another 
process with different uid, but dovecot seems to ignore the directive 
for files.

I'm using the last 1.0_rc2 release and i'm storing mail in maildir format.


Ex:

root at linux ~ # ls -al /var/domains/matteo/.maildir/.INBOX.test/
total 21K
drwxrwx---  5 maildir maildir 232 Jul  5 11:21 .
drwx------ 23 maildir maildir 928 Jul  5 11:21 ..
drwxrwx---  2 maildir maildir  48 Jul  5 11:21 cur
-rw-------  1 maildir maildir 144 Jul  5 11:21 dovecot.index
-rw-------  1 maildir maildir 11K Jul  5 11:21 dovecot.index.cache
-rw-------  1 maildir maildir 104 Jul  5 11:21 dovecot.index.log
drwxrwx---  2 maildir maildir  48 Jul  5 11:21 new
drwxrwx---  2 maildir maildir  48 Jul  5 11:21 tmp


for directories umask work! but for mail file... (i copied an e-mail to 
the imap folder)

root at linux ~ # ls -al /var/domains/matteo/.maildir/.INBOX.test/cur/
total 56K
drwxrwx--- 2 maildir maildir 104 Jul  5 11:24 .
drwxrwx--- 5 maildir maildir 264 Jul  5 11:24 ..
-rw------- 1 maildir maildir 55K Jun 21 17:03 
1152091443.P25455Q0M183478.linux:2,S

i would like the mail be stored with 0760 or 0770.
Could someone help me?

Thank you in advanced.


Matteo
P.S: sorry for my bad english