1 Address to 2 Users

Wayne · External Since: Oct 27, 2006 Posts: 3

Hey,

I am running a small mail server with multiple domains on it.

I now need to setup one address on the one domain that forwards to two local
users.
What would the best way to achieve this be ?

Any help would be appreciated.

Thank you,

Wayne

Chris F.A. Johnson · External Since: Oct 06, 2004 Posts: 589

On 2007-08-08, Wayne wrote:
> Hey,
>
> I am running a small mail server with multiple domains on it.
>
> I now need to setup one address on the one domain that forwards to two local
> users.
> What would the best way to achieve this be ?

Put it in /etc/aliases. This will sent mail addressed to
someone RemoveThis @example.com to local users qwerty and uiop:

someone RemoveThis @example.com:qwerty,uiop

Restart your mailserver or run newaliases after making the change.

--
Chris F.A. Johnson, author | <http://cfaj.freeshell.org>
Shell Scripting Recipes: | My code in this post, if any,
A Problem-Solution Approach | is released under the
2005, Apress | GNU General Public Licence

Steve Wampler · External Since: Dec 08, 2004 Posts: 58

Chris F.A. Johnson wrote:
> On 2007-08-08, Wayne wrote:
>> Hey,
>>
>> I am running a small mail server with multiple domains on it.
>>
>> I now need to setup one address on the one domain that forwards to two local
>> users.
>> What would the best way to achieve this be ?
>
> Put it in /etc/aliases. This will sent mail addressed to
> someone.TakeThisOut@example.com to local users qwerty and uiop:
>
> someone.TakeThisOut@example.com:qwerty,uiop
>
> Restart your mailserver or run newaliases after making the change.

Hmmm, does this really work? I thought /etc/aliases only worked
for one domain (works if the aliases are common across all domains
or there's only one domain.

Still, if it works, it's a simple fix - try it!

If it doesn't work and you're using sendmail, look into the
virtusertable feature - you can map a domain-specific name
with it and, by mapping to an aliases set up as above, get
that domain-specific name to map to two local users, ala:

virtusertable entry:
someone.TakeThisOut@example.com double_local_user

/etc/aliases entry:
double_local_user:qwerty,uiop

Note that you'll have to run make in /etc/mail after setting virtusertable,
and probably also restart sendmail.

--
Steve Wampler -- swampler.TakeThisOut@noao.edu
The gods that smiled on your birth are now laughing out loud.

Keith Keller · External Since: Jun 21, 2006 Posts: 458

On 2007-08-08, Chris F.A. Johnson <cfajohnson.TakeThisOut@gmail.com> wrote:
> Put it in /etc/aliases. This will sent mail addressed to
> someone.TakeThisOut@example.com to local users qwerty and uiop:
>
> someone.TakeThisOut@example.com:qwerty,uiop
>
> Restart your mailserver or run newaliases after making the change.

IIRC you will need to run newaliases whether or not you restart the
mailserver; the MTAs I know will not produce a new aliases db on
startup. (For sendmail and Postfix, restarting the daemon is not
needed; dunno about Exim.)

--keith

--
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Chris F.A. Johnson · External Since: Oct 06, 2004 Posts: 589

On 2007-08-08, Keith Keller wrote:
> On 2007-08-08, Chris F.A. Johnson <cfajohnson RemoveThis @gmail.com> wrote:
>> Put it in /etc/aliases. This will sent mail addressed to
>> someone RemoveThis @example.com to local users qwerty and uiop:
>>
>> someone RemoveThis @example.com:qwerty,uiop
>>
>> Restart your mailserver or run newaliases after making the change.
>
> IIRC you will need to run newaliases whether or not you restart the
> mailserver; the MTAs I know will not produce a new aliases db on
> startup. (For sendmail and Postfix, restarting the daemon is not
> needed; dunno about Exim.)

For postfix, either will do. I don't remember about others; it's
been a while.

--
Chris F.A. Johnson, author | <http://cfaj.freeshell.org>
Shell Scripting Recipes: | My code in this post, if any,
A Problem-Solution Approach | is released under the
2005, Apress | GNU General Public Licence

Wayne · External Since: Oct 27, 2006 Posts: 3

Hey,

I'ved used the first option of editing /etc/aliases with the example
someone.TakeThisOut@example.com:qwerty,uiop

Which has worked, will continue testing it but thanks to all for the help!

Wayne.

someone.TakeThisOut@example.com:qwerty,uiop

"Wayne" <wayne.TakeThisOut@domain.com> wrote in message
news:1186606762.602122@wblv-ip-nnrp-1...
> Hey,
>
> I am running a small mail server with multiple domains on it.
>
> I now need to setup one address on the one domain that forwards to two
> local users.
> What would the best way to achieve this be ?
>
> Any help would be appreciated.
>
> Thank you,
>
> Wayne
>

Steve Wampler · External Since: Dec 08, 2004 Posts: 58

Wayne wrote:
> Hey,
>
> I'ved used the first option of editing /etc/aliases with the example
> someone.RemoveThis@example.com:qwerty,uiop
>
> Which has worked, will continue testing it but thanks to all for the help!
>
> Wayne.
>
> someone.RemoveThis@example.com:qwerty,uiop

A simple test would be (since you have multiple domains) is to send
some mail to "someone@another_example.com" and see if it goes to those
two local users or not. I'm curious to know if it does as (on
my CentOS system [sendmail], at least), "man aliases" says:

Aliasing occurs only on local names.

-Steve

--
Steve Wampler -- swampler.RemoveThis@noao.edu
The gods that smiled on your birth are now laughing out loud.

Dances With Crows · External Since: Sep 16, 2006 Posts: 307

Steve Wampler staggered into the Black Sun and said:
> Wayne wrote:
>> I'ved used the first option of editing /etc/aliases with the example
>> someone RemoveThis @example.com:qwerty,uiop
>>
>> Which has worked, will continue testing it but thanks to all for the
>> help!
> A simple test would be (since you have multiple domains) is to send
> some mail to "someone@another_example.com" and see if it goes to those
> two local users or not. I'm curious to know if it does as (on my
> CentOS system [sendmail], at least), "man aliases" says:
> Aliasing occurs only on local names.

I'm not sure, but I think this means that the aliases will be expanded
only if the domain another_example.com matches a domain that the MTA is
accepting mail for. At least when I had exim set up as accepting mail
for dom1.example.com and dom2.example.com , mail to
production@dom[12].example.com sent mail to all the people on the
"production" alias. The Fine Manual for your MTA probably has the full
story spelled out in excruciating detail if you really want to know.

--
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"I suppose that program stuffing is to programs as gerbil stuffing is
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