Configuring email

Hi,

I've been trying to configure email for a couple of days now.  Just updated to VRO 7.2 and reconfigured email.

I do not want to pass credentials to my SMTP server.  When VRO tries to send an email, I am getting '535 5.7.3 Authentication unsuccessful' errors....even if the credentials being passed are "null".  I can send an email from a Windows server using powershell to the same SMTP server, without any credentials.

Is there a way sending an email without passing any credentials, even null?

Sorry if this is a dumb question!

Thanks