Remove "host" from email user@host.domain.com

[firekicker]

Hello!

I got a problem with mail . Everytime a client sents a email it looks like this:

-----Original Message-----

From: clientusername@hostname.hostcompany.se

[mailto:clientusername@hostname.hostcompany.se

How do I change this every mail just says:

From: clientusername@clientdomain.se

[mailto:clientusername@clientdomain.se etc ?

[Zion Ahead]

Same problem here

[gbh1935]

is there someway to make the email stop going to root@HOSTNAME.domain.com and instead go to root@domain.com????