E5.5 question for you all. I am running exchange 5.5 SP4 on win2k SP2. I constantly get a lot of weird messages in my "outbound messages awaiting delivery que" almost every day I had to manually delete them. My exchange server is internal with a unix sendmail server acting as a xternal SMTP server which relays email from the outside to my exchange. Where is the flaw that is letting all this spam thru? I am using Trend Micro Scan Mail to help with the spam. it does a good job, but i still get this anoying email in my queus. Can anyone please help. Thanks, Juan