I am building a module which contains several textfields in a form.
At the end of the form there must be 2 fields where users can upload a file (probably .doc).
All the fields must be send in an email.

These filefields are not the problem, neigther is the email function.(DotNetNuke...Sendmail)

The problem is this: How do I attach both files in 1 email?
I have tried comma-seperated (, or ; or :), Array's, but nothing seems to work.(filename is String)

Can anyone help me on this?

Thnx! I've tried a lot of characters, but not "|".

Keep in mind that an asp.net application such as DNN is not running under the same user as you are. It's a totally separate profile. That means a couple things. First off if you're logged and have a N: drive mounted that doesn't mean your web server knows anything about that drive, that is only known to your session. If you are addressing network resources from a web application you'll need to use a UNC (i.e. \\servername\sharename\filename). Next problem is credentials. You may be able to see something on a share, but your web application is likely running under ASPNET or NETWORK SERVICE that is a machine local account, not what you logged in as. That means of you need to access a network resource that needs a domain or workgroup id you'll need to change the identity of your application. The easiest way to do that is to create a new "service" userid in the domain, give it permissions to the shares in question, and change your application pool to use that userid/password.

This isn't specific to sendmail, it'll happen anytime in ASP.NET you try to access a network resource.

You can move the files to the server in the folder path with your application, but remember the web application still needs to have permissions to access those files if it's going to reference them even if it is only to copy them locally.