Hi. I have 2821 with zone-based firewall. I have 2 zone: in-zone (internet) and out-zone (LAN). For in-zone i have next rule:

!!!!!!!

class-map type inspect match-any PentarIncomingService

match protocol pop3

match protocol dns

match protocol smtp

match protocol http

match protocol https

match protocol user-8888

match protocol user-9999

match protocol user-8884

match protocol user-8885

match protocol user-8886

match access-group 3

match protocol user-rdp

!!!!!!

And when i want send mail from internet over our server i have next error on router:

000066: *Jul 9 20:32:03.779 IDLW: %FW-4-TCP_SENDMAIL_BAD_FROM_SIG: (target:clas

s)-(sdm-zp-out-zone-in-zone:PentarIncomingService):Sendmail Invalid Sender - fro

m XXX.XXX.XXX.XXX to 10.10.10.32

10.10.10.32 my mail server.

You can help me fix it?