Email sending problem under domain server

Hello everybody, I have successfully installed seafile CE on windows server 2012, but I have a problem with email sendings. My server is joined under Active Directory and I use the domain/user combination as the login user name. But it does not work. Can someone help me? Thankssssss

FYI: the windows version of seafile wont be supported in the future.

Yes… I am also facing this issue. I tried to solve it on my own but it didn’t worked. Please give me a better solution Mobdro.