I couldn't get the house email to work so I emailed Sensenbrenner. I hope some good can come out of this.
There's a bug in the email program for DeLay. I imagine it is the same for the other email programs. It doesn't recognize email addresses with more than one period. I was able to use my underlying email address which doesn't have a period in the name. I told them about it. They said they would have it fixed in a few days.
For instance xxx.xxxxxx@xxx.com isn't accepted, but
xxxxxxxx@xxx.com would be accepted.