[exim] Blocked mails

Hi



I have been away for some time and I really should do some house keeping on
the server.



The first issue I need to resolve has me stumped, mostly because I am stupid
so I am hoping for some useful pointers.

I have tried the documentation but I am probably lookin in the wrong place.



I have an Ubuntu server with Exim4 . the server has a name of
mail.name1.co.uk and is duely DNS registered.



The server also serves mail for a few other domains, lets call them
name2.co.uk and name3.co.uk



If I send mail from user@??? to a hotmail address it arrives no
problem, if I send from user@name2 or user@name3 the mail does not arrive.



Is there anything I can do to fix this problem?



Hill