> On 26 Mar 2024, at 17:48, Brotman, Alex via mailop <mailop@mailop.org> wrote: > > I'm not on the sending side, but I will note there are several ESPs running > out of EC2. Some seem to use their own IP ranges, some do not.
Yeah, and they had problems in the past where some major ISPs were blocking all space from EC2 and their mail was having a horrible time getting through. I think they worked with the ISPs to establish a way to special case that IP space. > I think if you're coming from an IP range you don't have direct control over > (i.e., cloud space), you must take extra precaution to warm the IPs ( and > domains, and click-track URLs, and and and ..). Understand you're going to > have garbage neighbors (if you don't bring your own ranges), and understand > the implications of that. Exactly. laura -- The Delivery Expert Laura Atkins Word to the Wise la...@wordtothewise.com Delivery hints and commentary: http://wordtothewise.com/blog
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