Hi All, I wonder if anyone has been through this. Lately after I finally have my email working I started receiving dcom errors with eventID 10009. All the information I've found in regards to this point to exchange. However, I'm using ISA to forward to my SMTP server in the DMZ. Using how to use the smtpcred.exe tool by Thomas. while these dcom errors are happening it seems that *.zip files and such can slide right on through. Thanks in advance Joseph