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New Member

ESMTP message repeats in ASA logs

I am working at a customer site where he has an ASA deployed between the Internet and the Inside networks.

I was examining the logs on the appliance today, and found this message repeating. I am curious if this is being caused by the following command on the ASA:

inspect esmtp

%ASA-4-108004: ESMTP Classification: Dropped connection for ESMTP Request from outside:76.96.62.40/38573 to inside:172.16.1.6/25; matched Class 4: header line length gt 998

2 REPLIES
Cisco Employee

Re: ESMTP message repeats in ASA logs

Yes,

the default inspection policy for esmtp traffic applies a lot of constraints as per the rfc's on the email traffic.

If you face issues with default policy,you can always modify it.Use asdm if needed,it's easier to modify the policy there.

Regards,

Sushil

New Member

Re: ESMTP message repeats in ASA logs

Thanks for your help. I may or may not modify the policy, I did want clarification on why the log message was being caused in the first place.

You have provided that. Thanks very much.

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