Hi all i'm a new user of this list, i got a server with DirectAdmin which has exim as MUA, dovecot as POP/IMAP server, recently i added the quota to exim and pointed the maildirsize file in the same location if the dovecot's one so both services can interact with it. This has been done to let exim update the quotas while doing localdelivery while dovecot can show quotas through roundcube and update them when users delete mails. The issue that i noticed is that some users get wrong quota informations... after a little investigation i think it could be a concurrent access to this file so dovecot tries to remove the deleted mails fomr maildirsize and exim tries to put new ones inside. In a specific case i got a user with a quota of 50M seeing that 75% of his quota filled while the real weight of the mail files is about 4% ...
any help would be very appreciated