between the value of header and that value provided by envelop "MAIL
FROM" will imply in tempory suspension of the message for analysis by
later filters. The message MAY BE REFUSED or NOT by rules of
destination email address.
- The coincidence does not enter the gotten
address in Envelope "RCPT
TO" with this header will imply in the temporary suspension of the
for analysis for later filter. The message will be or not sent for the
- In the occurrence of From Heading the
will not be refused and the address follows for the black list Na ocorrência de Cabeçalho From a mensagem
será recusada e o endereço segue para a lista negra.
Some pages of the site are endowed with SpamTrackers
(false e-mails) that they will only be captured by WebCrawlers. The
presence of these addressees in the message will imply in the
permanent refused of the message and the inclusion of the address-IP
to the black list.
filter compares the content of this
heading with possible
signatures of vírus/trojans/worms, as information harvested in
site of the Symantec. Since a lot of virus/worms sent messages with
Subject header empty, it is recomended a message synopsis in this
- An empty value will imply in the suspension
the message for posterior analysis.
- The filter analyzes the type of mailer used
and compares with a list
of identifications of Spam-mailers of the market. Several mailers are
executed in Windows platforms, however they assume a proper signature.
The coincidence of signatures will result in the refusal of the
message or the temporary suspension of the same one.
- The presence of this Header implies in the
use of a system HTTP for
the sending of messages through scripts badly-configured or sending of
spam mailing lists messages. This will imply in the suspension of the
for posterior analysis, being able to result in refusal or the sending
for the post office box. In the refusal case, address IP follows for
the black list.