iView - Unable to add mail server FQDN in Notification

I want to sheduled Report in Iview.

I am trying to add Systenm - Notification - SMTP server as smtp.gmail.com

But Iview not allowing me to add FQDN name in SMTP mail server, Only IP allowing. 

I have tried to add for (smtp.gmail.com) and port 465. 

Its not working. Log says unable to communicate with SMTP server. 

Iview not allowing to add FQDN name in SMTP mail server. 


Please help for resolution.