ESMTP Classification: Dropped connection

[vinodk_gupta]

Hi,

we have cisco ASA 5510 with ios ver 8.0(4).

we are getting following log. what is the root cause for this & what should we do to resolve.

2011-12-27 00:13:02 Local4.Warning 172.26.4.203 %ASA-4-108004: ESMTP Classification: Dropped connection for ESMTP Request from DMZ:192.168.150.21/3581 to outside:180.222.96.138/25; matched Class 4: header line length gt 998

2011-12-27 00:14:02 Local4.Warning 172.26.4.203 %ASA-4-108004: ESMTP Classification: Dropped connection for ESMTP Request from DMZ:192.168.150.21/3627 to outside:180.222.96.138/25; matched Class 4: header line length gt 998

These logg is frequently occured.

note:192.168.150.21 is our MX server for mailing.

Please help us to resolve it

Regards

vinod gupta

[ajay chauhan]

show service-policy inspect esmtp- This will show you what parameters are configured for ESMTP.

For modification this link can be used-http://www.cisco.com/en/US/docs/security/asa/asa80/configuration/guide/inspect.html#wp1559241

Thanks

Ajay