Mailstinger is for the kind of operator who gets paged at 11:47 p.m. because Proofpoint started quarantining payroll and nobody knows which intern flattened the DMARC record during the zone migration.
Why we're building this
Because the email-auth category is full of products that parse XML and charge $50 per domain per month to draw a chart about it. That is not enough. The 2 a.m. problem is not reading the chart — it is deciding what to do, and then doing it without breaking the Wednesday newsletter.
Every finding in Mailstinger carries a paste-ready fix. Every alert has the context to be actionable in ninety seconds. Every policy advance is staged so you know which senders are going to get quarantined before they do.
Who we are
A small team, deeply into the plumbing. We've run large Postfix deployments, triaged M365 quarantines, lived through vendor migrations, and written a lot of Python to parse broken rua XML produced by mail providers that should know better.
Where to find us
- Contact form → (sales, support, press)
- platform status: status page