your emails are landing in spam.

or worse, they're being silently throttled and you don't even know it yet. your pipeline is shrinking and you can't figure out why.

i've seen this pattern across 2,000+ customers at Premium Inboxes. someone reaches out, their campaigns have stopped working, they've tried switching subject lines and rewriting copy, and nothing's changed.

almost every time, the problem is infrastructure. it's the pipes carrying the email that are broken.

this kit is the exact diagnostic process we run internally when a customer's deliverability drops.

what you're getting:

1. a triage system to identify which category your problem falls into (in under 10 minutes)
2. the silent throttling detection framework (the invisible threat that wiped out 20+ cold emailers in 2025)
3. DNS and authentication repair checklists
4. sender reputation recovery steps with daily timelines
5. a provider-specific troubleshooting guide for Google and Outlook

if you're currently running cold email campaigns and your reply rates have dropped, your placement has shifted, or your domains are burning faster than they should, start with the Quick Win on the next page.

it'll tell you in 5 minutes whether you're dealing with an authentication problem, a reputation problem, or a throttling problem. each one has a different fix.