I send email by servicedesk portal, but when I click the Send button, I got e message:

Sending notification failed.

I’s using gmail for portal site.

Please check the attached and support me how to fix it?

Regards.

License Info
License Type = Registered
Product = Standard

@Name = administrator@
@Mobile Number = @
@Database Name = PostgreSQL@
@Database Version = 9.2.4@
@Current Build = 9312@
@32 / 64 bit installation = 64@
@Logged in users = 7@
@Zone = Asia/Bangkok@