Multidomain on email server

["Thierry Fernier" <thierry.fernier@ipsl-edu.com>]

Hi,

 

I've a server which accept three domains

example a.com, b.com and c.com

i've created mail account for the three domains (a name in a domain

doesn't exist in the other domains.)

when a user wrote a message with the c.com domain, the recever see that the mail adress of the sender is on a.com domain, (every domain are seen as a.com)

in the same fact if my account is on a.com, and somebody wrote me with the c.com domain (in the same account) i receive the message ???, eg: if you wrote on xxx@a.com and the account is on c.com the messsage is corrctly delivered

 

how can i resolve this problem and obtain that on the same server a sender on a.com will be seen as xxx@a.com

and a sender yyy@c.com will be seen as yyy@c.com  and not yyy@a.com!

 

Thanks for your help.

Thierry Fernier
thierry.fernier@ipsl-edu.com
Responsable Informatique
IPSL (Institut Polytechnique Saint-Louis)
www.ipsl-edu.com 
13, bd de l'Hautil
95092 Cergy Pontoise Cedex
Tel:  01.30.75.60.88
Fax: 01.30.75.60.01