Spencer Kollas says, “As many folks within the email eco-system probably know by now, Spamhaus, an organization known for compiling several widely used anti-spam lists, has been extremely active this week. Over the past week, Spamhaus has listed a number of potentially hazardous IP addresses used by some of the world’s largest email service providers due to the way their newsletters signups are set up. According to most of the listings, Spamhaus has stated:

Unfortunately, the said newsletter service is not verifying the email address of new subscribers. Due to this, the service can be easily abused to “listbomb” internet users.

Problem resolution
The newsletter service needs to clean up their email address list and ensure that bulk emails are only being sent to recipients who have verifiably subscribed to their bulk email service“.

Spamhaus and email bombing marketing update

‘Experian Marketing Forward’ Blog

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