[Dovecot] Using MailDir but local messages still save in mbox format

Mike Edwards me at wilsonville.net
Fri Sep 27 09:44:08 EEST 2013

Yes the mbox messages are showing up in /home/vmail and the ownership is 

The messages that come from cron and other system stuff that address 
messages to root at my.host.name  or to ownerOfCronJob at my.host.name    
Nobody will ever check those boxes and they are not wanted.    We would 
like to either redirect them else where ( forward and not leave in the 
mbox file) or just block all messages to anyone at my.host.name.

I did just find a way to put in a forward to forward everything to 
root at my.host.name to a virtual box and now the messages have stopped for 
that address.  I suppose I could put in a forward each time a new mbox 
shows up but would rather just block all messages addressed to 
anyone at my.host.name if there is a way.

On 9/26/2013 11:36 PM, Steffen Kaiser wrote:
> Hash: SHA1
> On Thu, 26 Sep 2013, Mike Edwards wrote:
>> I am using MailDir format for all my virtual users and it is working 
>> well. However, if email comes in to a unix system user, it delivers 
>> in Mbox format. This is mostly cron jobs that do this.    Mail 
>> addressed to my virtual users goes to the MailDir locations just 
>> fine.  None of these mailboxes have ever been created, they are just 
>> incorrect assumed addresses.   There should NEVER be any email to 
>> username at my.host.name because everything is virtual.
> Er: 1) What is done by "cron jobs"??
>> passdb {
>>  args = /etc/dovecot/conf.d/dovecot-sql.conf.ext
>>  driver = sql
>> }
>> userdb {
>>  args = uid=vmail gid=vmail home=/home/vmail/%d/%n
>>  driver = static
>> }
> 2) Are the mbox files for the system users located in /home/vmail/... 
> ? What Unix uid/gid do they have?
> 3) Do you have any entry in the Dovecot logs, that let you assume that 
> messages to system users are delivered through Dovecot?
> 4) If you do not want, that your MTA accepts messages for 
> username at my.host.name reconfigure it.
> - -- Steffen Kaiser
> Version: GnuPG v1.4.11 (GNU/Linux)
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