I've enabled SMTP in Administrator -> Global Settings -> E-MAIL, but I can't send e-mails
 
p.s.: I use trial-version of ViArt Shop (3.6.) on Windows

Hi,
 
you should do a little search on the forum. THis is a regular topic that is already covered.
 
Try unchecking the use smtp and leave your login and password + server info on that page. Click aply and try again.
 
Please do check other posts about this topic.
 
Regards,
Sérgio