[Exim] Re: exim recives e-mail on difrent name than fqdn

I decide to try with new configuration and add 127.0.0.1 to local domains.
And change some stuff. And result is understandable to me.
First as you see in conf file there is in host_accept_relay name
solar.pharma.hr and also domain
pharma.hr. Exim will recive mail for zex@??? but not for
zex@??? wich is FQDN
Also now relaying works for local domain and that's great. But i would like
that my users recives e-mail on
old adress zex@??? the server nana will be shutdown and solar
will take ip from that host
so i would like when e-mail comes to zex@??? that exim recive
that e-mail and delivere it to zex@??? .

Tnx.

local_domains =
pharma.hr:solar.pharma.hr:mail.pharma.hr:nana.pharma.hr:127.0.0.1
host_accept_relay =
localhost:pharma.hr:solar.pharma.hr:nana.pharma.hr:161.53.121.0/255.255.255.
0
relay_domains = pharma.hr:solar.pharma.hr:nana.pharma.hr




>
> What about when you add 127.0.0.1 to your local_domains =
>
> then give Exim a HUP ??