[Koha] koha mail

[Araik Manukyan]

Dear community, 

Our Fundamental library  mail server  and koha located on different servers.

Such  mail server we use sendmail program on linux ubuntu 12.04 and (we have
mail account kohaflib at flib.sci.am)

We use Koha 3.12.05 Tarball on Ubuntu 12.04.

We want to   use our mail server  for  sending notices to Koha patrons .

How can we configure Koha  to send email?

Best regards,

Araik