Email spamming related to IP address
- Waterfalling – is when multiple Email Sending providers ( ESP ) are being used to send email. In this case, each ESP is using it’s own block of IP addresses. Spammers use one ESP to clean their lists, also called scrubbing, and another to send the actual marketing email. This technique is used by spammers and gray mailers.
- Snowshoe Spamming – is a spamming technique where a wide range of IP addresses are used to spread out the spam send rate and or load. Using a wide range of IP addresses makes it difficult for ISP’s to successfully identify the spam resulting in some of the spam to slip through.
- IP hopping – is simply using one set of IP addresses today, and next week you use new ones. ISP’s might throw you into the category of Snowshoeing or Waterfalling. If for some reason you have to change your IP’s, make sure they get warmed up properly, by relaying only a few mails per day through them. It takes a very long time to build a proper reputation for IP’s.