[exim] Issue with using alias file

Hi ,

I having issues with configuring aliases on EXIM. I am not able to send
email successfully. Exim tries to relay email to alias without checking
/etc/alises.



Any feedback is appreciated

Thanks



- EXIM 4.84_2 running on two servers mailgw1.domaina.com ,
mailgw2.domaina.com , both relay out as senderAddress@???

- From Clients : I tried mailx -r senderaddress@??? -s "Subject"
usera@??? < /root/mailtext OR I tried mailx -s "Subject" usera <
/root/mailtext

- Entry I have on /etc/aliases ( tried two configurations below)

usera@???: usera1@???
OR
usera: usera1@???


Section on exim.conf file

system_aliases:
driver = redirect
allow_fail
allow_defer
data = ${lookup{$local_part}lsearch{/etc/aliases}}
# user = exim
file_transport = address_file
pipe_transport = address_pipe