Newsletter application

Hey,

I've created a really usefull newsletter application, but it's single user. This means I've created a physical mailbox by hand.
Someone pointed out to me that in order to let user create and send out their own newsletters they need a physical mailbox
aswell. Is this true?

What if I get a 10.000 users, how can I manage so many mailnoxes on a single machine and how to avoid my mailserver getting
marked as a spamserver (blacklisted)?

Should I work with so called smarthosts?

Hope someone has experience with newsletter applications + mailservers.

Cheers!

Hi,

You might have heard of DotNetNuke an open source portal software which comes with full source code.
DNN has a feature that allows administrators of the portals to send out HTML newsletters to a selection of roles or individual users.
The news letters sending has an Asynchronous and Synchronous mode of sending emails.

Download the source code from herehttp://www.dotnetnuke.com/tabid/125/default.aspx and check out the source code you might some good ideas on how to solve your problems.

Goodluck