The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
Server based "Message Undeliverable" email spoof for spam control.
English (United States)
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Anti-Spam Spoofing From Server
The problem is gobs and gobs of email spam. Spammers buy and sell lists of "valid" email addresses,
flooding networks with unwanted, often scrupulous solicitations. Currently most companies or services
use filters, but that does not impact the source or sender.
One technique is to use brute force against a known domain (***@us.ibm.com) where randomly
generated or commonly used names are tried against the domain, and then all invalid ones are filtered out
based on the "undeliverable" messages.
The proposed solution is that on receipt of a "known spam" (as per current filter or pattern matching
techinques), the server will send back a "undeliverable mail" to the sender, even if it is a valid email
The hope here is that the sender will no longer be able to validate this email address as valid, and
therefore not be able to "sell" as part of a list, or possibly be removed from existing lists. There are client
based solutions and scripts that do this (from google search), but none that I have found that combine or
add to a server-based filter.