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<div class="content legacycomment"> <p> The IPv6 spam can be the two types. </p> <p> &nbsp; </p> <p> First, is when the mail is sent from dual-stack PC and the spammer don't care about IPv6 at all. The example is mail from infected PC, such as from botnet. The spamming software send the mail through mail client of the infected user, and if PC&nbsp;is dual-stacked and target is IPv6 capable, the letter will fly through IPv6, BUT the sammer even don't know about it. </p> <p> &nbsp; </p> <p> Second, if the spammer care about IPv6 and use it as there is less anti-spam filters can work with IPv6 mail. </p> <p> &nbsp; </p> <p> What kind of IPv6 spam is growing now? </p> <p> &nbsp; </p> </div>