dovecot - Aug 2017 - Strange folders

Hi all,

I?ve been experiencing the ?magical? creation of random folders on my mail
server.

I managed to catch the creation of one last night. Here is the log:

Aug 30 01:38:13 mail dovecot: imap(f.lastName at domain.com): Debug: Namespace :
/home/vmail/domain.com/f.lastName/Maildir/.wkkwgfrubwioniohkcyqttugdtdabuyn
doesn't exist yet, using default permissions
Aug 30 01:38:13 mail dovecot: imap(f.lastName at domain.com): Debug: Namespace :
Using permissions from /home/vmail/domain.com/f.lastName/Maildir: mode=0700
gid=default
Aug 30 01:38:13 mail dovecot: imap(f.lastName at domain.com): Debug: acl vfile:
file
/home/vmail/domain.com/f.lastName/Maildir/.wkkwgfrubwioniohkcyqttugdtdabuyn/dovecot-acl
not found


I have substituted only the username and the domain name. The folder name is as
it was created: wkkwgfrubwioniohkcyqttugdtdabuyn



There has been no activity logged on the exim4 side at that time. What would be
the best course of action to determine what is happening?

> On August 30, 2017 at 11:40 PM Marti Markov <marti1234 at gmail.com>
wrote:
> 
> 
> Hi all,
> 
> I?ve been experiencing the ?magical? creation of random folders on my mail
server.
> 
> I managed to catch the creation of one last night. Here is the log:
> 
> Aug 30 01:38:13 mail dovecot: imap(f.lastName at domain.com): Debug:
Namespace :
/home/vmail/domain.com/f.lastName/Maildir/.wkkwgfrubwioniohkcyqttugdtdabuyn
doesn't exist yet, using default permissions
> Aug 30 01:38:13 mail dovecot: imap(f.lastName at domain.com): Debug:
Namespace : Using permissions from /home/vmail/domain.com/f.lastName/Maildir:
mode=0700 gid=default
> Aug 30 01:38:13 mail dovecot: imap(f.lastName at domain.com): Debug: acl
vfile: file
/home/vmail/domain.com/f.lastName/Maildir/.wkkwgfrubwioniohkcyqttugdtdabuyn/dovecot-acl
not found
> 
> 
> I have substituted only the username and the domain name. The folder name
is as it was created: wkkwgfrubwioniohkcyqttugdtdabuyn
> 
> 
> 
> There has been no activity logged on the exim4 side at that time. What
would be the best course of action to determine what is happening?
was the user logged in?

are all the folders with same name?

have you enabled mail_log?

Aki