I purchased Google inboxes from Zapmail — they handled all the setup and connections. I let them warm up for a full month to be safe. When I started using them in campaigns last week, I got zero replies. I dug into my lead list and realized most of my prospects are on Microsoft providers, which makes sense since I'm targeting enterprise. I came back to the ScaledMail course and figured I should run a deliverability check. Here are the results: https://spamchecker.mailreach.co/tests/7b8a1b8a3e1ecf18778e02 What I can't wrap my head around is how inboxes set up by specialists, warmed for a month, can perform this badly on a spam test. I've only been sending for four days and under 20 emails per inbox — I couldn't have tanked the reputation that quickly. Could I? Since we paid a significant amount for these inboxes, I wanted to isolate the variable and test by ESP. So I ran the same copy through Google ESPs instead — and that campaign pulled a 2% reply rate (All negative). I've attached a copy example if you're curious. And on the targeting front: the first campaign (zero replies) was hyper-targeted. We scraped LinkedIn job postings and even sent physical postcards to those leads beforehand, so targeting isn't the issue. Where I'm stuck: I can't pinpoint whether this is a Zapmail setup problem, something I did, or purely an ESP matching issue — but I need to find a way forward. Has anyone run into something similar? Happy to answer any questions about the setup.

Do you guys stagger your emails from a company level? Let's say you are trying to reach out to 3 prospects in Company ABC. Do you all stagger via: - Day 1 -> Email #1 to Prospect J - Day 3 -> Email #1 to Prospect K - Day 5 -> Email #1 to Prospect L

Does anyone need access to the course that's already a scaledmail customer? reply below.

I'm curious on how do you diagnose if a domain is an issue when sending campaigns? Like when is it a sign to rotate and replace domains. Build a scalable system with buffer: Many domains + many inboxes + low volume per inbox, plus 20–30% extra capacity so you can rotate, test, and replace domains without stalling campaigns.