Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
11 reviews
Select a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Koldmail provides scalable email infrastructure for businesses and outbound teams. We specialize in Google Workspace and Microsoft Outlook inboxes, offering reliable infrastructure, competitive pricing, and hands-on support built for teams operating at scale. Managing over 2,000,000 email accounts.
Koldmail.io (koldmail.io) has 11 customer reviews on The Fair Hearing, with an average rating of 5.0 out of 5.
Showing 11 reviews with 5 stars · Clear filters
We’d tried cold email before and it flopped, no replies, straight to spam. Kold Mail rebuilt our whole setup: domains, sequences, targeting, all of it. First campaign got a 9% reply rate and 6 booked calls in week one. Three months in, cold email is now our top acquisition channel, outperforming paid ads on cost per lead. If you’ve been burned by cold email before, this is the team that actually fixes it instead of just sending more volume. Insane results
By Sienna F.
I’ve been using KOLD MAIL for our outbound campaigns, and so far, the experience has been really solid. The setup has been smooth, the inboxes have been reliable, and it’s been much easier to manage everything in one place. The team has also been responsive whenever we’ve had questions. Overall, a great experience so far.
By Rea mae grace A.
The team is super responsive and gets things done without me having to chase them. Messages get answered quickly and the team actually fixes things instead of sending you in circles. Deliverability holds up.
By Jennifer G.
