When trying to enable the basic firewall on the 851 with SDM or SDM Express I receive the following:
Preparing commands for delivery...
Submitting 283 commands, please wait...
class-map type inspect imap match-any sdm-app-imap
Error detected at this command. Click OK
Here are the SW versions
IOS Version: 12.4(15)T5
SDM Version: 2.5
I have seen a couple other posts on this forum with very similar issues, but none of them have solutions posted...