I've configured maildrop/postfix to correctly deliver mail to the maildirs of virtual accounts with LDAP authentication. But, something odd is happening: maildrop doesn't actualize the maildirsize file.

In the same computer I've unix as well as a few virtual accounts, and for the unix accounts (also LDAP authenticated) maildrop does its job fine, it correctly actualizes maildirsize, but it does not for virtual accounts.

This are the lines logged in /var/log/maillog, indicating the delivery of a mail sended to both a virtual and a unix account:

May 16 11:30:35 otto postfix/virtual[26096]: 24D5F32E66: to=<virt...@host.org>, relay=virtual, delay=0, status=sent (maildir)

May 16 11:30:35 otto postfix/local[26093]: 24D5F32E66: to=<unix...@host.org>, relay=local, delay=0, status=sent ("|/usr/bin/maildrop -d "$USER" -f "$SENDER" "$EXTENSION""

So, what's going on here? as I understand when maildrop is delivering to a maildir and it sees a maildirsize file, it just actualize it, whitout considering anything else but this specific directory structure and the existence on the maildirsize file.

I'm almost 40K users and growing... getting too near too fast, and we can't live without quota.

Regards.