Disable a User's email account

[edwardspl at ita.org.mo]

Les Mikesell wrote:

> edwardspl at ita.org.mo wrote:
>
>> Les Mikesell wrote:
>>
>>> edwardspl at ita.org.mo wrote:
>>>
>>>>>> Dear All,
>>>>>>
>>>>>> The System is FC6...
>>>>>> So, how to disbale a User's mail service ?
>>>>>> eg : Sendmail + Dovecot ( pop3 /imap ).
>>>>>>
>>>>> One way is to use the aliases file to direct the mail elsewhere or to
>>>>> /dev/null. Another is to use the virtuser table to map the users you
>>>>> want to permit to real addresses with a catchall rejection.
>>>>>
>>>>> Maybe it would be easier to describe exactly what you want these
>>>>> users
>>>>> to be able to do first and build an environment that provides nothing
>>>>> else instead of starting with a general-purpose login and trying to
>>>>> stop everything you don't want them to do.
>>>>>
>>>> Hello,
>>>>
>>>> Is there a sample ( steps by steps ) for reference ?
>>>>
>>> There's actually easier way than the ones mentioned above. In your
>>> /etc/mail/access file put a line like:
>>>
>>> user at domain.com REJECT
>>>
>>> or
>>>
>>> user at domain.com ERROR:550 no such user here
>>> (if you want to control the rejection error)
>>>
>>> or
>>>
>>> To:user at domain.com ERROR:550 user unknown
>>> (if you want to permit sending but reject inbound)
>>>
>>> Execute 'make' in the /etc/mail directory to rebuild the access
>>> database after the change, or you can restart sendmail with 'service
>>> sendmail restart' which will also do it.
>>>
>>> Note that fedora defaults to only accepting email within the local
>>> machine. If you want a working mailer you have to make a change to
>>> /etc/mail/sendmail.mc, removing the Addr=127.0.0.1 restriction, then
>>> restart sendmail.
>>>
>> Hello,
>>
>> This way is only for SMTP ?
>> So, how about for pop3 / imap also ?
>
>
> SMTP is the mail transport. Pop and IMAP only access a user's own
> mailbox. Running a pop/imap mail program won't be very interesting if
> you can't send or receive from anyone. If you want to disable access
> to some particular program you'll have to make it only executable by a
> certain group and put everyone allowed to run it in that group.
>
Hello,

Is there a best solution for disable user's email account ( mail service
: incoming and outgoing ) ?

Edward.