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• Enable login failure detection of SMTP AUTH connections

LF_SMTPAUTH = "3"

LF_SMTPAUTH_PERM = "1"

# Set the following to the minimum number of unique IP addresses that trigger

# LF_DISTATTACK

LF_DISTATTACK_UNIQ = "3"

# To disable set to "0"

LF_DISTSMTP = "1"

# Set the following to the minimum number of unique IP addresses that trigger

# LF_DISTSMTP. LF_DISTSMTP_UNIQ must be <= LF_DISTSMTP for this to work

LF_DISTSMTP_UNIQ = "3"

# If this option is set to 1 the blocks will be permanent

# If this option is > 1, the blocks will be temporary for the specified number

# of seconds

LF_DISTSMTP_PERM = "1"

# Send an email alert if LF_DISTSMTP is triggered

LF_DISTSMTP_ALERT = "0"

# This is the interval during which a distributed FTP or SMTP attack is

# measured

LF_DIST_INTERVAL = "300"