As
described, Spacequad Internet Services utilizes local blocks in addition to the MAPS and
Spamhaus databases. These blocks are often temporary, and placed
up as a defensive measure against active SMTP Denial of Service
attacks (mailbombs), or to prevent active, large scale spam in
progress attacks.
A
short note to our subscribers: If and when e-mail blocks are
implemented, if someone sends an e-mail message and the sender's
IP address or SMTP (outgoing mail) server is on one of these block
lists, then the incoming e-mail is blocked (either permanently or
temporarily). This solution may result in the inadvertent blocking
of some e-mail that is not traditional spam.
This
is an unfortunate, but necessary action that must be taken to
protect the majority of our subscribers from this security issue.
Only upon working with the affected ISP will this issue be
resolved. We would therefore like to stress that you should
contact the affected ISP for assistance in resolving the
situation.
All
Non-MAPS or non-Spamhaus related SMTP error messages, sent back to
the original sender by Spacequad Internet Services, will be in the following
format:
ERROR:5.7.1:550
Mail Refused: Domain/IP: See http://www.spacequad.com/mail_blocks.htm#REASON
ERROR:4.7.1:450 Mail Temporarily Refused: Domain/IP: See http://www.spacequad.com/mail_blocks.htm#REASON
A
500 or 571 Error indicates a permanent refusal of the INBOUND mail
message. This indicates that Spacequad Internet Services will no longer accept
mail from that source, due to the continued abuse that is coming
from that domain or IP range.
A
400 or 450 error indicates a temporary failure of INBOUND mail.
This indicates that Spacequad Internet Services has had to temporarily refuse mail
from that source due to one or more reasons. Mail will be queued
up on the senders server, and eventually will be delivered,
providing the problem subsides.
Please
note: "Permanent" in the case of a mail error does not
mean that Spacequad Internet Services has blocked mail from the source
"forever". "Permanent" in this case indicates
a "go away" response to the mail message, as opposed to
a 4XX error, which means "try again later".
A
note to affected ISP's and providers: Spacequad Internet Services will no longer
accept mail from your domain or IP blocks due to the issues
described below.
Subscription
Abuse - ERROR:5.7.1:550 Mail Refused - THIS_IS_NOT_THE_REAL_DOMAIN
- See http://www.spacequad.com/mail_blocks.htm#subcription
Subscription
abuse is more commonly known as 'Mailing List Forgery'. This often
occurs with so-called "single opt-in",
"opt-in", or "out-out" mailing lists.
The
problem with these types of mailing lists is that a malicious user
anywhere on the Internet can subscribe a Spacequad Internet Services
user to
hundreds, sometimes thousands, of e-mail lists. With some mailing
list owners current configurations, it is possible that no attempt
will be made to confirm that the "victim" actually
subscribed to the mailing lists before they are added. As a result
the "victim" has to unsubscribe from mailing list(s)
that they never signed up for, which may be a extremely timely
process if they were subscribed to multiple lists. This also often
results in an increased (and sometimes damaging) impact on Spacequad Internet Services
mail servers.
Another
way that this problem can occur is through poor mailing list
management. Mailing list "brokers" often sell or rent
lists of harvested or "single opt-in" names to third
parties, who then send out mailings, under the guise that the
mailing lists were gathered legitimately. This often leads to
complaints from our subscribers. For more information on basic
mailing list management guidelines for preventing abuse, please
see http://mail-abuse.org/manage.html.
No
Spacequad Internet Services role account address, nor any Spacequad Internet Services
subscriber,
should be forced to "unsubscribe" from a mailing list
that was never subscribed to in the first place. Permission of new
subscribers must be fully verified before mailings commence. This
is usually accomplished by means of an email message sent to the
subscriber to which s/he must reply, or containing a URL which
s/he must visit, in order to complete the subscription. If an
organization does not utilize these confirmation methods to ensure
that malicious, forged, or otherwise fraudulent subscriptions do
not occur, then Spacequad Internet Services will not accept mail from that source.
Spacequad Internet Services
will take the appropriate steps to ensure that neither Spacequad Internet Services
role accounts, nor the subscribers of the Spacequad Internet Services
service, receive unsolicited commercial e-mails from a domain or
source that does not utilize confirmation methods in its mailing
list methodology.
Until
such a time as this issue is corrected, Spacequad Internet Services
may not accept
mail from a sites that do not utilize confirmed mailing list
methodologies.
If
you would like to resolve this situation, you must e-mail Spacequad Internet Services
Security at security at spacequad dot com.
IF YOU E-MAIL TO ANY ADDRESS OTHER THAN security at spacequad dot com,
WE CANNOT GUARANTEE THAT YOUR REQUEST WILL BE ADDRESSED IN A
TIMELY MANNER.
Domains listed with this error will be removed only after
meeting one of the following conditions:
Option 1: Your organization is able to produce full
subscription and confirmation records for this subscriber (such as
web logs or e-mail transaction reports detailing that our
subscriber both signed up for, and subsequently confirmed, the
subscriptions for your mailings).
OR
Option 2: Your organization adheres to the following criteria
for mailings to Spacequad Internet Services
A. Adherence to Spacequad Internet Service's Inbound
Sending Policies
B. Removal and permanent blocking of all outbound mail for all
clients to *@Spacequad.com (example: user@Spacequad.com)
C. Permanent blocking of all Spacequad Internet Services RFC 2142 addresses (see http://www.ietf.org/rfc/rfc2142.txt)
D. Immediate reconfirmation of all non-confirmed *@*.Spacequad.com email
addresses (example: user@foo.spacequad.com) in your mailing lists. We can
assist you with verbiage if so desired.
E. Assurances that your organization will take immediate steps to
stop the sending of nonconfirmed mailings to our role accounts and
to our subscribers, through the use of CONFIRMED opt-in mailing
list practices, for all future mailings. If you would like more
information on the many methods of confirmation techniques for
mailings, please see http://www.mail-abuse.org/nml/methods.html.
OR
Option 3: Your organization joins or subscribes to a service
listing senders who have certified, via some pre-defined
mechanism, that all mail that they send are confirmed as having
been requested by the recipient. A list of those services which Spacequad Internet Services
currently subscribes to can be found at our Whitelist
Policy page.
We are not, however, interested in any of the following, as
they are not indicative of permission-based mailings:
1. Confirmation that you have "listwashed" our
subscriber.
2. Information on your "simple unsubscribe process".
3. Our subscriber's name, address, or other personal information.
4. Information on your "privacy policy".
5. Information on where/how you obtained the address in question,
unless accompanied by subscription and confirmation logs.
6. Autoresponses.
MAKE SURE THAT YOU INCLUDE THE EXACT ERROR MESSAGE THAT YOU ARE
RECEIVING WHEN YOU E-MAIL US - IF YOU DON'T INCLUDE IT, YOUR MAIL
WILL BE DISCARDED.
Security
Issue - ERROR:5.7.1:550 Mail Refused - WE_NEED_THE_ACTUAL_ERROR -
See http://www.spacequad.com/mail_blocks.htm#security
This
error indicates one of the following:
(1) The sending machine or network has a security problem
associated with it, which resulted in the sending of
unsolicited bulk mail to our subscribers or role accounts.
(2) The sending machine or network is actively attacking our
mail servers (mailbomb, DoS attack, etc).
(3) The sending machine or network is located within a
dynamically assigned IP address pool, and the ISP owning that
pool has a stated "no server" policy.
(4) The sending machine or network is not in compliance with Spacequad Internet Services's posted
Inbound
Sending Policies
If
you are blocked because of another machine on your local network
segment, YOU MUST contact your provider to resolve the situation.
YOUR PROVIDER should then contact us at removel at spacequad
dot com,
so that the block can be removed.
IF YOU E-MAIL TO ANY ADDRESS OTHER THAN removel at spacequad
dot com,
WE CANNOT GUARANTEE THAT YOUR REQUEST WILL BE ADDRESSED IN A
TIMELY MANNER.
IF YOU ARE NOT THE OWNER OF THE IP ADDRESS, AS DETERMINED BY ARIN
OR AN ASSOCIATED IP REGISTRAR, **CONTACT YOUR ISP**. IF YOU ARE
UNSURE OF WHO OWNS YOUR IP ADDRESS, SEE THIS
LINK
If you believe you're permitted to run a mail server where you
are, ask for clairification from your Internet provider. If your
Internet provider allows you to run a mail server, THEY need to
contact us and tell us that you're specifically allowed.
ISP's which are blocked with this error message contact Spacequad Internet Services
immediately at removel at spacequad
dot com
IF YOU E-MAIL TO ANY ADDRESS OTHER THAN removel at spacequad
dot com,
WE CANNOT GUARANTEE THAT YOUR REQUEST WILL BE ADDRESSED IN A
TIMELY MANNER.
MAKE SURE THAT YOU INCLUDE THE EXACT ERROR MESSAGE THAT YOU ARE
RECEIVING WHEN YOU E-MAIL US - IF YOU DON'T INCLUDE IT, YOUR MAIL
WILL BE DISCARDED.
Open
Proxy Server Block - ERROR:5.7.1:550 Mail Refused -
WE_NEED_THE_ACTUAL_ERROR - See http://www.spacequad.com/mail_blocks.htm#proxy
A
block placed with this specific error means that there is an open
proxy server at the IP address listed, which has been verified by Spacequad Internet Services.
If you would like this block to be removed, please contact us
at removel at spacequad dot com,
and we will remove the block.
MAKE SURE THAT THE OPEN PROXY HAS BEEN CLOSED FIRST.
PLEASE KEEP IN MIND that if you request that the block be
removed, and your host is still an open proxy, it will simply be
relisted if the host sends us mail again and is re-verified as an
open proxy.
IF YOU E-MAIL TO ANY ADDRESS OTHER THAN removel at spacequad
dot com,
WE CANNOT GUARANTEE THAT YOUR REQUEST WILL BE ADDRESSED IN A
TIMELY MANNER.
MAKE SURE THAT YOU INCLUDE THE EXACT ERROR MESSAGE THAT YOU ARE
RECEIVING WHEN YOU E-MAIL US - IF YOU DON'T INCLUDE IT, YOUR MAIL
WILL BE DISCARDED.
Open
SMTP Server Block - ERROR:5.7.1:550 Mail Refused -
WE_NEED_THE_ACTUAL_ERROR - See http://www.spacequad.com/mail_blocks.htm#relay
A block placed with this specific error means that there is an
SMTP server at the IP address listed, which has been verified as
an open relay by Spacequad Internet Services.
If you would like this block to be removed, please contact us
at removel at spacequad dot com,
and we will remove the block. PLEASE KEEP IN MIND that if you
request that the block be removed, and your host is still an open
SMTP relay, it will simply be relisted if the host sends us mail
again and is re-verified as an open relay.
IF YOU E-MAIL TO ANY ADDRESS OTHER THAN removel at spacequad
dot com,
WE CANNOT GUARANTEE THAT YOUR REQUEST WILL BE ADDRESSED IN A
TIMELY MANNER.
MAKE SURE THAT YOU INCLUDE THE EXACT ERROR MESSAGE THAT YOU ARE
RECEIVING WHEN YOU E-MAIL US - IF YOU DON'T INCLUDE IT, YOUR MAIL
WILL BE DISCARDED.
Spam
Source - ERROR:5.7.1:550 Mail Refused -
THIS_IS_NOT_THE_REAL_DOMAIN - See http://www.spacequad.com/mail_blocks.htm#spam_source
When a block is placed on a domain or IP range and the reason
is "spam source", that is because the domain listed in
the error has been directly connected in the sending of UBE or UCE
directly to Spacequad Internet Services subscribers or role accounts, and has been
unresponsive to complaints.
The domain listed in the error message is considered by Spacequad Internet Services
to be a known source of spam. If you are not part of the
domain listed in the error message, then you, in all likelihood,
just happen to have network connectivity on the same network
segment as the spammer.
This will, therefore, sometimes inadvertently block innocent
mail. This is unfortunate, but as Spacequad Internet Services has no way of
verifying the integrity of the entire network, and cannot tell
where a blocked entity will "hop" to next within a
limited block, we have no choice but to make broader assumptions
to protect our networks and our customers.
In order to clear up the situation, your provider must either:
(1) Terminate the spammer (and let us know)
OR
(2) Tell us exactly what IP addresses belong to the spammer
We can then modify or remove the listing as appropriate. We have
NO WISH to innocently block mail. We do, however, need to hear
from your provider in order to get this accomplished. As such, you
should contact them FIRST.
Your provider must e-mail Spacequad Internet Services
Security at removel at spacequad
dot com.
IF YOU E-MAIL TO ANY ADDRESS OTHER THAN removel at spacequad
dot com,
WE CANNOT GUARANTEE THAT YOUR REQUEST WILL BE ADDRESSED IN A
TIMELY MANNER.
MAKE SURE THAT YOU INCLUDE THE EXACT ERROR MESSAGE THAT YOU ARE
RECEIVING WHEN YOU E-MAIL US - IF YOU DON'T INCLUDE IT, YOUR MAIL
WILL BE DISCARDED.
Spam
Support Services
Should a domain be listed with this error, it indicates that
the domain, to the best of our knowledge, is *knowingly* providing
services to a domain or entity associated with spam that our
subscribers have received.
This includes:
(1) providing connectivity to spam networks
(2) hosting web pages which are promoted by spam
(3) providing e-mail drop boxes or autoresponders which are
promoted by spam
(4) providing resources such as DNS services, banner ads, hit
counters, script processing and form handling services to
sites promoted by spam
SMTP mail blocked in this manner will be blocked with an error
message similar to the following:
ERROR:5.7.1:550 Mail Refused: DOMAIN1 providing spam
support for DOMAIN2
Block
Requested - ERROR:5.7.1:550 Mail Refused -
WE_NEED_THE_ACTUAL_ERROR - See http://www.spacequad.com/mail_blocks.htm#request
This block has been placed at the request of the administrator
of the IP address. It will not be removed under any circumstances,
except at the request of that administrator.
Please contact your administrator for further information.
Unresolvable
IP Address - 450 4.1.8 Mail Error
This is a TEMPORARY error indicating that the IP address that
attempted to deliver mail to Spacequad Internet Services did not have a resolvable
DNS address.
If you are a subscriber, you MUST CONTACT YOUR ISP, and
instruct them that reverse DNS is REQUIRED to send mail to Spacequad Internet Services.
If you are an ISP, please ensure that proper forward and
reverse DNS exist for your IP addresses.
Once proper forward and reverse DNS exist, this error will no
longer happen.
Outside
Abuse
Your mail is being refused due to your sending of repeated
issues that are not related to the Spacequad Internet Services system.
Spacequad Internet Services is NOT able to address your outside abuse issues, and as such, has
sent you this
autoresponse on multiple occasions. Email removel at spacequad
dot com
if you wish to be removed.
CC'S
To Spacequad Internet Services
Your mail is being refused due to repeated inclusion of the
Spacequad Internet Services abuse issues as a Carbon Copy in your complaints to
other ISPs. Spacequad Internet Services is NOT able to address your outside abuse
issues, and as such, has sent you this
autoresponse on multiple occasions. Email removel at spacequad
dot com
if you wish to be removed.
Missing
Information
Your mail is being refused as it consistantly does not contain
the required information that we require to process your
complaint, and our repeated attempts, via this
autoresponse, have not garnered a response or change. Email removel at spacequad
dot com
if you wish to be removed.
Free
Speech Issues
Spacequad Internet Services supports the free flow of information and ideas
over the Internet. Spacequad Internet Services does not actively monitor nor does
Spacequad Internet Services exercise editorial control over the content of any web
site, electronic mail transmission, mailing list, news group or
other material created or accessible over Spacequad Internet Services.
The
Internet is full of global unmoderated discussion forums. You
chose to participate in them, you need to understand the workings
of them, they will not conform to your desires.
Someone
will always have an opinion that differs from yours. Someone will
always have an opinion you find offensive. Someone will always use
some kind of language you find offensive. If you are opinionated
someone will always taunt you for it.
Learn
the use of a kill file; this is why they exist. Only you know what
you do and do not find offensive, exercise your right to decide
what you view through a kill filter. Email removel at spacequad
dot com
if you wish to be removed.
Bad
Return Address
If you forge your return address, and will not allow us to
respond to you, then we will not accept mail from you. Email l
dot com
if you wish to be removed. |
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