I don’t do a great deal of outbound marketing on my domain names. When I do outbound, I typically find no more than the top 5-15 prospective buyers, and I generally stick to marketing domain names priced below $10,000.
Ideally, because I try to stick to highly targeted prospective buyers, at least one or two people will reply to my email and either buy the domain name or try to negotiate a better deal. More often than not, I won’t receive a reply at all. I hardly ever reply to unsolicited marketing messages myself, so it’s not a surprise to have low response rates to outbound sales emails.