Cyrus - can't create user mailbox

[Jorey Bump]

Stephen Liu wrote, at 06/10/2008 09:21 AM:

>>> The output here is;
>>> $ id postfix
>>> uid=107(postfix) gid=111(postfix) groups=111(postfix)
>> Yes. Now add the postfix user to the mail group, and the permissions 
>> error should disappear.
> 
> I'm prepared to run;
> 
> $ sudo groupadd mail -g 1001

I didn't say add the mail group.

> $ useradd postfix -u 1001 -g 1001

I didn't say add the postfix user.

> Shall I use number 1001?  OR another number?

Don't. Stop guessing.

> However on /etc/group I found following entries;
> 
> mail:x:8:dovecot

See, you already have a mail group. Leave it.

> dovecot:x:113:

And you seem to have dovecot installed, which shouldn't be a problem if 
you're not using it.

> I don't have dovecot-* running.  Shall I remove them manually?  Thanks

No, you should avoid manually removing applications on systems like 
Debian. Use the package manager to remove it. There's also a chance that 
  Debian has some utilities for managing your mail system that you may 
want to look into. Personally, I don't like Debian's wizards, tools, or 
over-reaching modifications, so I don't use it. But if you like the 
system they offer, it can be easy to maintain.

All you need to do is add the (existing) postfix user to the (existing) 
mail group. This can be as easy as editing /etc/groups, using the more 
secure vigr command, or any other number of ways your system provides. 
You should also be aware of your platform's documentation, especially if 
it's going to back you into certain corners. In any case, refer to it to 
learn about permissions, ownership, and how to add a user to a group. 
Then simply add postfix to the mail group and report back any new errors 
or success.