I found a method to prevent losing money on my email marketing campaigns.
I run about 20 domains across my products, and email kept failing me in the most expensive way possible: silently. Campaigns showed “delivered” while landing in spam. We switched email providers and forgot one DNS record, reply rates collapsed, and we spent weeks blaming the copy. A tool we’d stopped using was still authorized to send as one of our domains.
None of these show up as errors. You find them months later, after they’ve cost you real money.
The existing DMARC tools are built for security teams and read like RFCs, so I built HealthCheck Email(healthcheckemail.com) for marketers and founders instead:
Enter a domain and get an A+ to F email health grade in seconds, covering DMARC, SPF, DKIM, MX, blacklists, and TLS
It parses the reports mailbox providers send about your domain, so you see every service actually sending as you, with names like “Google Workspace” and “Klaviyo” instead of IP addresses
A guided path from DMARC p=none to reject without blocking your own legitimate mail
Daily re-checks with alerts to email, Slack, or webhook the moment a record changes
I’d genuinely love feedback from this community: what would make you trust a tool like this with your client domains? And what’s the worst silent email failure that’s ever bitten you?
Replies
Saeed, twenty domains and a failure that shows up as delivered while actually landing in spam is the kind of problem that only gets loud months late, after the cost is already spent. I run three businesses myself and the pattern is always the same, the thing that hurts is never the loud failure, it is the quiet one sitting fine on a dashboard until a client mentions it. That gap is exactly why I built FounderFlow, for operations instead of email specifically. Curious how you first noticed the DNS record had gone stale, was it a drop in replies you happened to investigate, or something else that tipped you off?