Hi, I have some real problem. The problem is as following. As an smtp server I'm using my local IIS6.0 smtp server. This always worked fine, I can include attachments and everything. But for somehow it modifies some digital signed pdf files, The

Hi,

I have some real problem. The problem is as following.
As an smtp server I'm using my local IIS6.0 smtp server. This always worked fine, I can include attachments and everything.
But for somehow it modifies some digital signed pdf files, The ones who come from the dutch Chamber of commerce.
I don't know why this is happing, but for somehow it does and The send files can't be opened anymore.
If I'm using an external smtp server everything works OK, but this is not what I want. I want to use a local smtp server preferably IIS.
I treid to send the .eml files with win 2008R2 an win 2012, both are going wrong.
When I copy the .eml file to my local pc I can simpy open the attachments.
Dus someone have a solution or suggestion for me?

Regs

Bart