Blocked Email and Blackhole List FAQs
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is the SPAM mailbox in my webmail folders? Check
the SPAM mailbox periodically to see if there happens to be any
messages you need that were put there inadvertantly. The default
settings should not normally falsely indicate spam, but nothing
do I configure the SPAM filters or turn them off? Login
to the "Webmail" interface which is a link at the top
of the hypercon.net homepage. Then follow the instructions on
the "Configration of SPAM filters"
am I getting an error which says "Non Hypercon users..."
when I am a Hypercon user? You need to call tech
support and ask them to help you configure your email program
to use "SMTP Authentication" or check the "My Server
requires Authentication" checkbox in Outlook/Outlook Express.
do I do if I am NOT a Hypercon user and I have gotten a message
saying that my emails are being blocked by a blacklist? You need
to reference the information we have listed below, and if your
ISP's mail server is listed then email their technical support
and let them know which rejection list they are on. They should
be able to resolve the problem within 48 hours. If your email
if was blocked because you are attempting to run your own personal
mail server in Internet address space which is not allowed
that use, you can contact the administrator of the list you are
on, but they will most likely not remove your server from that
list unless your upstream ISP asks them to allow your address
space to house a personal mail server.
you explain these "Blacklists" to me?
We use a combination of blacklists to help us determine mail servers
who send out all or mostly unsolicited emails. This allows us
to stop accepting email from those servers until they fix the
problem which is causing the mail abuse. This is a regular occurance
for servers hosted overseas or local US servers which are not
secure. Many of the blacklists simply look to see if the sending
mail server requires its users to give it a password to send mail
rather than just letting anyone send through it. Some lists know
which ranges of Internet addresses are used for dialup customers
or DSL/cable customers, who are residential in nature, and are
not allowed to have personal mail servers on their computers.
Others list ISPs
mail servers who allow users to spam through their network repeatedly.
Five of the main lists we use are below:
- The DSBL lists contain the IP addresses of servers which have
relayed special test messages to email@example.com; this
can happen if the server is an open relay, an open proxy or has
another vulnerability that allows anybody to deliver email to
anywhere, through that server. Note that DSBL itself doesn't do
any tests; it simply listens for incoming test messages and lists
the server that delivers the message to DSBL's mail server.
- Information in the open proxy and relay databases are statements
of fact for a given time and address, by SORBS. All other entries
are based upon suspicion and/or opinion of the SORBS administrators,
unless otherwise stated. SORBS is of
the opinion that all entries created by the SORBS administrators
are correct. Any documents sent to the administrators of the service
(both paper and electronic) maybe reproduced at the administrators'
discretion in any forum, in whole or in part. If you are in the
'spammers' database it is because you, your machine, or a previous
user of the address sent Unsolicited mail to one of the admins
of SORBS. You will not be removed from the database without a
donation to a charity/good cause for the time spent reading and
dealing with the email(s).
ISPs falsely discredit the SORBS list, please read our stance
on the SORBS list here.
- ORDB.org is the Open Relay Database. ORDB.org
is a non-profit organisation which stores a IP-addresses of verified
open SMTP relays. These relays are, or are likely to be, used
as conduits for sending unsolicited bulk email, also known as
spam. By accessing this list, system administrators are allowed
to choose to accept or deny email exchange with servers at these
- The goal: To provide a system which will flag
the most spam with the least 'collateral damage' (flagging of
wanted email). This is a never-ending and difficult task. This
system is driven by people (some would say "mob-rule").
As such, it is intelligent but also faulty. People are instructed
to report only email which is UBE (Unsolicited Bulk Email). Users
being what they are, they may accidentally or maliciously report
other email. So the results are fuzzy, but surprisingly accurate
and agile (try it yourself - the results speak for themselves).