[Dovecot] too large imap.index.data files

[wired at linfe.it]

>From Sven Kirmess, Feb 23:
 >#   maildir:/var/mail/%1u/%u/Maildir
 >#   mbox:~/mail/:INBOX=/var/mail/%u
 >#   mbox:/var/mail/%d/%n/:INDEX=/var/indexes/%d/%n

You mean changing the mail environment?
My current environment is: 

default_mail_env =  mbox:~/Mail/:INBOX=/var/spool/mail/%u

My ~/Mail directory contains symbolic links to mbox folders; sometimes
the same mbox folder (e.g. Abox) has been linked to two ~/Mail subdirectories 
(e.g. Msub1 and Msub2): 

  ~/Mail/Msub1/Abox ---->  /home/pol/mail/folders/Abox
  ~/Mail/Msub2/Abox ---->  /home/pol/mail/folders/Abox


Is that an issue?

thank you 

will