SPAM NINJA

The filtering methods use by Spam Ninja are designed to avoid false positives. Two different levels of filtering are used. The first level filters at the SMTP level and the second at the DATA& level. Spam Ninja follows RFC standards to make sure there is no lost mail. The sender is always informed by their sending server that the messages was accepted or rejected... As much as possible, incoming email connections are not blocked until after the ‘rctp to" SMTP command is received. This is done to insure maximum logging. Once an incoming connection is established the message is checked to see if it follows RFC standards, if it is listed on any internal/external blacklists and several other checks. If the connection is from an unknown source the Spam Ninja cluster may temporary reject it with a 4xx code. This type of filtering is referred to ask "grey listing" and all properly configured mail servers will reattempt delivery. If the connections is from a known, spam-only source or there..

Primary location: Franklin United States