108006: Detected ESMTP size violation
Cisco ASA is a security device that provides the combined capabilities of a firewall, an antivirus, and an intrusion prevention system. It also facilitates virtual private network (VPN) connections. It helps to detect threats and stop attacks before they spread through the network.
Message: %ASA-7-108006: Detected ESMTP size violation from src_ifc: sip |sport to dest_ifc:dip |dport; declared size is: decl_size, actual size is act_size.
Event 108006 is generated when an ESMTP message size exceeds the size declared in the RCPT command. The message contains:
- Source information name.
- Source IP address or port number.
- Destination interface name.
- Destination IP address or port number.
- Declared size.
- Actual size.
How could you resolve this situation?
This event does not require any action.