Hi i have mail server sme 7.5 i can send and receive emails without any problem internally or outside(gmail,yahoo,etc)
I make another computer as mail server as backup(if main damage i can replace it) but install in it sme 8.1
with same settings
my domain altawi.com.sa
i Replace mail server sme 7.5 with sme 8.1
when i send email to my network internally it reach without any problem send or recieve
but when i send to outside emails as (gmail,yahoo,Hotmail) or any email outside domain
it not send .
I using outlook 2007.
after i replace computer mail server 8.1 with mail server 7.5
i can send email to outside gmail,yahoo,etc from webmail
but i cannot send from outlook 2007
although i can recieve any message from outside domain or local
and two computers with same settings and same internal ip 192.168.1.4
what different between two cases or two mail servers
why cannot send email to outside domain yahoo,gmail,etc if i using sme 8.1
although i can recieve and i can send email to any email outside domain
but from outlook i cannot send to outside but i can recieve email from outside