Pop3 – D-Link DFL-2500 User Manual
Page 151

gw-world:/> dnsbl
DNSBL Contexts:
Name
Status
Spam
Drop
Accept
------------------------
-------- -------- -------- --------
my_smtp_alg
active
156
65
34299
alt_smtp_alg
inactive
0
0
0
The -show option provides a summary of the SPAM filtering operation of a specific ALG.
gw-world:/> dnsbl my_smtp_alg -show
DNSBL used by ALG my_smtp_alg
Drop Threshold
: 20
Spam Threshold
: 10
Append TXT records
: yes
IP Cache maximum size : 10
IP Cache current size : 5
IP Cache timeout
: 600
Configured BlackLists : 4
Disabled BlackLists
: 0
Current Sessions
: 3
Statistics:
Total number of mails checked : 34520
Number of mails dropped
: 65
Number of mails spam tagged
: 156
Number of mails accepted
: 34299
BlackList
Status
Value
Total
Matches
-------------------------------- -------- ------
-------
-------
server.spamcenter.org
active
25
34520
221
node1.spamlister.org
active
20
34520
65
To clean out the dnsbl cache for the my_smtp_alg and to reset all statistical counters for it, use the
command option:
gw-world:/> dnsbl my_smtp_alg -clean
Note
The above DNSBL server URLs are fictitious and are only for illustration. A DNSBL
listing can be found at
6.2.6. POP3
POP3 is a mail transfer protocol that differs from SMTP in that the transfer of mail is directly from a
server to a user's client software.
POP3 ALG Options
Key features of the POP3 ALG are:
Block Clear Text Authentication
Block connections between client and server that send the
username/password combination as clear text which can be
easily read (some servers may not support other methods than
this).
6.2.6. POP3
Chapter 6. Security Mechanisms
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