Domains need to be warmed, too

One thing that came out of the ISP session at M3AAWG is that domains need to be warmed up, too. I can’t remember exactly which ISP rep said it, but there was general nodding across the panel when this was said.
This isn’t just the domain in the reverse DNS of the sending IP, but also domains used in the Return Path (Envelope From) and visible from.
From the ISP’s perspective, this makes tons of sense. Some of the most prolific snowshoe spammers use new domains and new IPs for every send. They’re not trying to establish a reputation, rather they’re trying to avoid one. ISPs respond by distrusting any mail from a new IP with a new domain.


  1. Alam says

    Gmail said!

  2. March 2014: The month in email – Word to the Wise says

    […] talked about how domains need to be warmed up, not just IP addresses. And how there are lots of common causes for delivery problems, and too many […]

  3. Anthony Chiulli says

    Laura – what advice or references can you share on the soundest approach to warm up a new domain? Are the same principles for warming an IP adhered to for a new domain?


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