It is a waste of time to send mail to any rhyolite.com address from unwelcome IP addresses, unwelcome domain names, or listed free providers. It is also unproductive to send mail from IP addresses listed in the Spamhaus.org SBL+XBL Mail from listed IP addresses or domain names mail may appear to be accepted by the MX or mail server for rhyolite.com, but is discarded after being logged and reported to the DCC as with a count of MANY. It probably will not be seen by a person.
The DCC or Distributed Checksum Clearinghouses is a system of clients and servers that collect and count checksums related to mail messages. The counts can be used by SMTP servers and mail user agents to detect and reject bulk mail.
The primary and authoritative repository of DCC source and documentation is nearby. There is also a faster mirror. The commercial version, DCC Reputations, is distinct.
Two of the DCC clients support greylist spam filtering.
Mail messages from domains on a list of free providers are rejected at rhyolite.com, because of spam claiming to be from them. Rejecting mail supposedly from free mail providers is an extremely effective tactic for avoiding spam or unsolicited bulk mail. Whether the senders of spam once owned the accounts their mail claims to be from and the free providers have since canceled them does not affect the power of this tactic. In the summer of 2003 it seems to be effective against about 45% of spam. Of course, you must be able to "white-list" legitimate correspondents who use free mail providers.
Mail from domains on list of unwelcome domains is rejected because unsolicited bulk mail or other objectionable mail from, mentioning, or otherwise apparently associated with them has been seen at rhyolite.com.
Messages from IP addresses on this list are also unwelcome.
Please see this list of objections and answers before complaining about the blacklists in use at Rhyolite Software, LLC.
If you are one of the many people who recently discovered the Final Ultimate Solution to the Spam Problem, beware of the warning signs of having gone off the deep end.
Of course, your unsolicited bulk email is not spam because...
Contact vjs@rhyolite.com by mail or using the form. Do not send mail to the spam trap.
