What goes in Account field for SMTP Connector Outbound Security?

Hello,

If my ISP is Verizon.net and my hosting company for our domain is Arvixe, when I fill the field for Account in the Outbound Security of the SmallBusiness SMTP Connector properties that are here:

Do I use the account from my Verizon.net ISP or do I use the account from Arvixe email?

Any help would be gratefully appreciated.

Thanks,
Tony

Stop The World, I want To Get Off! ........... Life Isn't About Waiting For The Storm To Pass ... It's About Learning To Dance In The Rain.