![]() ![]() The SCBL is a list of IP addresses which have transmitted reported email to SpamCop users, which in turn is used to block and filter unwanted email. This text taken from What is the SpamCop Blocking List (SCBL)? The SBL is a realtime database of IP addresses of verified spam sources (including spammers, spam gangs and spam support services), maintained by the Spamhaus Project team and supplied as a free service to help email administrators better manage incoming email streams. You generally will need to contact your ISP to inquire about having your reverse DNS entry fixed if you are finding email blocked due to this restriction. Some customers block all email that comes from hosts without valid reverse DNS. Spammers often use hosts that do not have valid reverse DNS (the mapping from an IP address back to a hostname) in an attempt to obscure their tracks. The Spamhaus PBL is a DNSBL database of end-user IP address ranges which should not be delivering unauthenticated SMTP email to any Internet email server except those provided for specifically by an ISP for that customer’s use. If you feel that your email has been blocked improperly, see the Appeal Information section, below. Dyn URL Blacklistĭyn maintains an internal blacklist of URLs frequently used in spam, and uses this list to protect our customers. We are careful to ensure that this list includes only true spam sources, but if you feel your email has been blocked improperly, see the Appeal Information section, below. Dyn Blacklistĭyn maintains an internal blacklist of repeat spam offenders, based on log information from our email servers. If the destination email address should exist, but you are receiving this error, contact the customer through another method and ask them to ensure their user list is properly configured. This allows Dyn email to filter out email destined to invalid addresses. Dyn Email User Listĭyn Email Backup MX and Dyn Email Gateway feature a user list, allowing customers to specify exactly which mailboxes exist at their email server. Some of the lists and spam blocking options below are applied automatically to all email transiting through the Dyn email servers, while others are optional and may be selected by customers on a per-domain basis. Through the use of a carefully selected set of DNSBLs, we can help block a significant percentage of incoming spam before it uses significant system resources, without blocking any legitimate customer email. As a responsible email service provider, we feel it is necessary to protect our customers from spam, and one of the methods we use to do that is with various DNS-based blackhole lists, or DNSBLs. One of the many features of Dyn inbound email services is spam blocking. General Dyn Email Spam Blocking Information Your IP address is listed on the Spamhaus XBL. Your IP address is listed on the SORBS DUL. Your IP address is listed on the SpamCop Blocking List. ![]() Your IP address is listed on the Spamhaus SBL. This often indicates a simple misconfiguration. ![]() Your IP address does not have valid reverse DNS. Your IP address is listed on the Spamhaus PBL. Your message contained URLs known to Dyn to be used in spam. Your IP address is listed on an internal Dyn blacklist due to large volumes of spam. The recipient’s address is not listed in the service’s user list. If you are simply interested in some general information on the way DNS-based blackhole lists and other spam blocking tools are used in Dyn email services, see the General Dyn Email Spam Blocking Information section. If you were sent to this page because of a bounced email message, please look up the error code from that message and click the appropriate link from the table below for an explanation of why the email was rejected. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |