The process cannot access the file because it is being used by another process

Question

I have a set of nightly reports.

Sometimes I get the exception:

The process cannot access the file because it is being used by another proce

Answer 1

Confirmed. I had a similar problem and did what Greg said.

In finally block after sending the message, I just put this in there, and it released the file handles:

foreach(Attachment a in message.Attachments) a.Dispose();