How to set up SMTP Auth using POP3 Global Mailbox on Exchange 2003

We recently had a customer get a bounce-back from Spamhaus, it complained that he had sent the email without SMTP Authentication. Now, setting this up on a standard POP3 mailbox in Outlook is no problem, the issues start when we have to set it up using Exchange.
They currently have a root@ POP3 account being received by the server which then gets distributed accordingly.
How do we turn on SMTP Authentication for all emails going out from the server?

Server OS: SBS 2003
Exchange: Exchange 2003 SP2
LVL 2
synergiqAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

BusbarSolutions ArchitectCommented:
By default SMTP send emails (server to server) with no authentication,  i am missins something can you explain the issue little more
0
Olaf De CeusterCommented:
Exchange uses DNS or Smarthosting for sending. You can use authentication on smarthosting but not on DNS as far as I know.
Seems a very strange question.
If spamhaus picks up your client you're most probably an open relay or you have a virus.
Have a look at the following:
http://www.amset.info/exchange/smtp-openrelay.asp
Hope that helps,
Olaf
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Email Protocols

From novice to tech pro — start learning today.