Which email warmup service do you use? Why?

I use https://warmupinbox.com. Good ui/ux and should be easy to use

Smartlead.ai is a good one; the best thing is they give unlimited warmups with every plan.

I carefully evaluate various email warmup services based on their effectiveness, reputation, customer reviews, and pricing. Currently, I use Lemlist's Warmup Service because it offers a comprehensive suite of features, reliable deliverability, excellent customer support, and competitive pricing, ensuring a successful email outreach campaign.