SMTP AUTH required when sending via ISPs Gateway

[johnbanshee]

Hi,

I know ho to do this in Exchange 2000 > but the customer has 5.5 and wants to make that work...

Most of the email goes out via DNS but some ISPs are refusing mail [using MAPS lookup] ie because it comes from A DUN IP address pool.

The solution to this is is send the mail for specific domains through the DSL provider's SMTP gateway...however, they require SMTP authentication.

I know how to filter for specific domains, but where on earth do you set the username & password to authenticate with...

Any help appreciated.

Thanks

JB