Yes, this is possible and relatively simple

HCL Notes/Domino 8.5 Forum (includes Notes Traveler)

Subject:

Hi Jason,

You can access the mail-in databases from the web by using the 'Open Mail For' feature in iNotes. If the user is logged in to their iNotes account, on the left hand navigator under 'Other Mail' they may click 'Open Mail For'.
This will present them with a prompt and they can enter the internet address of the mail in database.

In my test case, I created a database called Docs.nsf which is mapped to ImportantDocs address via the Mail-In setup document and the database is using the mail8.5 template. I am able to switch to the Docs database just fine and any other database that has a web view should load as well.

The user must be an authorized reader of the mail-in database for this to work properly. If you are using the iNotes redirector and know the name of the database you can log in directly: http://server.com/Docs.nsf

If you want the users to be able to click on a list of these items, you'll need to setup a web document somewhere with the hard coded links. Or you could modify the template to include some hard coded links in the left hand navigator, though all users would need to update their template to see the links.

Cheers,
Ron

Feedback response number RJLH7YZLBZ created by ~James Quetfreelyoni on 12/23/2009