Sending email using an external smtp

[rainy]

Maybe it would be helpful if you would share your solution? Then somebody else with the same problem, doesn't has to ask again.

Yeah!

i found the solution to that by log in to zadmin, then i go to Admin > sentora config 
in here i choose mail method is STMP and input the credentials of the mail server u would want to you
that's it, hope someone find it helpful