LOG BANNER

TCP/IP-channel-specific options: LOG_BANNER (0 or 1)
The SMTP/LMTP client option LOG_BANNER controls whether the remote SMTP/LMTP server banner line is included in    file  entries when the    channel option is enabled for  the channel. A value of 1 (the default) enables logging of the remote SMTP server banner line; a value of 0 disables it. also affects whether a remote SMTP/LMTP banner line, if available, is  included in  bounce messages  generated by the channel.

See also:
 * logging Option
 * MTA transaction log entry format
 * Notification message format
 * TCPIP-channel-specific options