Symantec™ Security Gateways Reference Guide - Sawmill

Log messagesNotice messages (200-299)165218 - Invalid SMTP protocol, response code is not numericDescription: An invalid SMTP protocol is received. The response code is not numeric.218 - Message header contains invalid charactersDescription: The SMTP protocol is invalid because the message header contains invalid characters. The message isdropped.218 - Message header contains too many 8-bit charactersDescription: The SMTP protocol is invalid because the message header contains too many 8-bit characters. The messageis dropped.218 - Overly long line receivedDescription: The SMTP protocol is invalid because a very long line is received. The message is dropped.218 - Overly long message header fieldDescription: The SMTP protocol is invalid because a very long message header is received. The message is dropped.218 - Sending system is not 8-bit cleanDescription: The SMTP protocol is invalid because the sending system is not 8-bit clean. The message is dropped.Enable the “pass non ascii” option to resolve this problem.218 - Suspicious article receivedDescription: The NNTP domain received an article that did not conform to the protocol for articles.The NNTP domain checks the header to determine if any of the header fields reference some deniednewsgroups, and checks the cached article body to determine if it contains material that should be deniedaccess.218 - Too many short packets - possible use of Telnet by clientDescription: The SMTP protocol is invalid because the client may have used Telnet. The message is dropped.218 - Unknown response to commandDescription: The NNTP protocol that is being used is not allowed.218 - Unsupported protocol typeDescription: An attempt is made to send a protocol command using an unsupported protocol type, which may signify anattack. The resource parameters provide more detail. Check for other log messages related to thisparticular IP address.218 - Unsupported/inappropriate commandDescription: A protocol command is sent that is either not supported or sent at an inappropriate time, which maysignify an attack. The resource parameter provides information on the type of command. Check for otherlog messages related to this particular IP address.