Your emails go to spam. mailX shows you why, and how to fix it in seconds with clear answers and exact steps. Built for humans and AI agents. API and MCP ready.
What I find interesting about this space is that deliverability is becoming less of a technical issue and more of a trust infrastructure issue. Especially now that AI has dramatically increased outbound volume everywhere. Curious if you think inbox providers are moving toward evaluating behavioral authenticity as much as domain health itself?
Report
This is great. Ironically I just ran into this issue on my own agency email that's on Google. All was well but then I transferred the domain ownership from one website to another to consolidate where my domains are being held and this messed up the MX, SPF, and DKIM settings. Claude walked me through how to get it fixed but it was bad enough that I wasn't even receiving Resend emails from my apps or account verification emails. Would've loved to have this tool before yesterday!
Replies
SyncSignature
What I find interesting about this space is that deliverability is becoming less of a technical issue and more of a trust infrastructure issue. Especially now that AI has dramatically increased outbound volume everywhere. Curious if you think inbox providers are moving toward evaluating behavioral authenticity as much as domain health itself?
This is great. Ironically I just ran into this issue on my own agency email that's on Google. All was well but then I transferred the domain ownership from one website to another to consolidate where my domains are being held and this messed up the MX, SPF, and DKIM settings. Claude walked me through how to get it fixed but it was bad enough that I wasn't even receiving Resend emails from my apps or account verification emails. Would've loved to have this tool before yesterday!
Meet Warren
I really would love just a button and all my mail setup / best practices audits are done and, even better, fixed. Does this tool do that?
Cutsio
Usually spam reasons are skewed domain reputation but nice to see this making sure none of the other usual suspects are the reasons. Good stuff!