OE crashes

When sendind a message with OE 6, if the receiver is not registered into my authentication DB, I get a server error saying the message could not be sent. When I try to reopen the message, OE crashes down. BUT it sometimes happens that the message is passed to the “sent messages” of OE, even though it has not been really sent (:AGY)
If I disable CAS before sending the msg, everything is OK

Hi Figeb:
We have confirmed this’s is one bug of Comodo AntiSpam, and we have fixed it in one coming release(2.1), please keep one eye on the public release. Thanks for your report. (CNY)