Android :: Exchange Activesync Problem Desire HD - Cannot Send From Android Native Mail App

I have a brand new Desire HD. Up until 2 days ago, everything was working perfectly with my Outlook Exchange Account on the native Android Mail application. Running Android 2.2

Since then, there is something wrong with our Outlook certificate, and when I launch Outlook on my PC, I get a message that the name on the certificate is not valid. Ok, fine. So on the PC, I press "OK" and I am off and running.

On the Desire, I still get email, but if I try to SEND and email, it neither reaches the recipient, nor does the email end up in the "Sent" mail folder. When I go to "Accounts and Sync" and look at the Exchange account, I also see that i have a sync protocol error on Contacts syncing.

Now, I have installed Touchdown, and I CAN send email from here. Also, I have a friend who has an older Android phone that does not seem to be affected in a similar fashion connecting to the same exchange server.

Problem: The Touchdown app is kind of a pain from a user interface standpoint when you try to edit a contact. and it costs $20. And, I really prefer the native Mail widgets and stuff.

I am stuck using Touchdown at the moment so that I can send and receive emails, but I am hoping to find a workaround. Our IT people are working on the certificate problem, so maybe that will help. HOWEVER, I cannot afford to be without email every time there is a certificate problem.