Knowledgebase
TOPIC: E-MAIL FILTERING USING BLACK AND WHITE LISTS
Black and White lists are lists of wanted (White) or unwanted (Black)
e-mail peers. Lists can be by Domain, IP address, e-mail address and
can include partial information (part of a domain, IP addres...
Yes you can list an entire country code or any other top level domain
or subdomain using the Black/White List (Filters > Black/White List).
To block a whole domain or subdomain, simply add that domain to the
black list:
* Log into your PerfectMa...
Yes in "Filters > Content" you can enter words and phrases with
negative values to give "bonus" scores. Be careful to only use words
and phrases that are uncommon and which spammers will be unlikely to
guess.
KEYWORDS: antispam, filter, content, bonus, s...
Use _Content Filtering_ (FILTERS > CONTENT) to identify messages
containing content and language that is not acceptable to your
organization. When adding entries to this table, please take some time
to consider the various instances.
The content of ...
PerfectMail does not make use of Non Delivery Reports (NDRs), rather
it uses SMTP Rejection Notices. These rejection notices are exchanged
during the SMTP mail exchange; when e-mail is being exchanged between
mail servers. PerfectMail is able to give n...
GreyListing can be disabled in the web admin interface:
* Login to the web admin interface
* Navigate to: Filters > Filter Settings > Actions (tab);
* Uncheck GreyListing.
You cannot directly edit the "system" word list. This list is
maintained by our central lab. If you find a problem with the word
list please let us know and we will modify it immediately.
KEYWORDS: antispam, filter, configuration, content, block, wo...
SUMMARY:
How to turn off filters, modules and other tests using the web
interface? ANSWER:
Your PerfectMail server has configuration options for the server as a
whole, domains and e-mail addresses, and filter settings. You can
configure settings for...
SUMMARY:
How do I disable content filtering, specifically word list filtering,
in PerfectMail? ANSWER:
PerfectMail has two word/phrase based content lists that it uses to
filter e-mail:
* System Word List: provided and maintained by PerfectMail
...
To disable anti-spam tests, including Domain Spoofing, for a specific
host or domain simply add the sending e-mail domain, or the hostname
or IP address of the sending server, to the "White List" table or "No
Server Checks" table on the _Black/White Li...
All e-mail, including both spam and legitimate messages is stored on
the server for a short period of time; typically 14 to 30 days. (Types
of spam and holding time is dependent on individual server settings.)
A web-based administrator interface gives adm...
SUMMARY:
How do I train PerfectMail? How do I report spam? How do I get
messages blocked that seem to slip through the filters? ANSWER:
The best way to stop spam from getting through your system is to
report it to both your local PerfectMail server ...
SUMMARY:
ow does PerfectMail reject e-mail? Does PerfectMail send Non Delivery
Reports (NDRs)? Will it send Backscatter? ANSWER:
PerfectMail will always send a Rejection Notification for e-mail
addresses that it cannot validate or messages that cann...
Spammers are constantly scouring the Internet looking for fresh
targets for their trash. Empirical studies show that Spammers harvest
e-mail address from web-sites, discussion groups, web blogs, chain
letters and any other source they can find.
Spam...
_Recipient Filtering_ is a process where e-mail destined to addresses
not hosted on your mail server are rejected during transmission. This
is an important tool in reducing the volume of spam serviced by your
mail server.
PerfectMail(tm) performs _r...
With PerfectMail, whitelisting takes precidence over blacklisting.
Search the _Mail Log_ (E-mail => Mail Log) for the message and check
at the _Scores_ (expand the Scores by clicking on the [+]) to see if
the message was whitelisted.
If it was not w...
There are a number of reasons why the amount of Spam you receive does
not go down immediately after implementing PerfectMail.
Here are the most common reasons along with suggestions on how to fix
the problem:
* You may be receiving e-mail from un...
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