mailX is now in the Claude directory: ask Claude why your emails go to spam

Hey makers πŸ‘‹

Last week mailX went live inside ChatGPT. This week it's Claude's turn: mailX is now in the Claude directory as a connector.

Same idea. You ask Claude "why are my emails going to spam?" with your domain, and instead of a generic checklist, Claude runs a real check through mailX:

  • SPF, DKIM, DMARC and blacklists, with the exact records found

  • your DKIM selector, found for you (most people don't know theirs)

  • the fixes, in priority order

  • SPF and DMARC records ready to paste

15 tools, all read-only. it never sends an email, never touches your DNS and never asks for a password. No account, no API key. Free.

πŸ‘‰ Add mailX to Claude:

πŸŽ₯ 1-minute demo, a real Claude session on one of our own domains (, which still has no SPF and no DMARC πŸ™ˆ):

Two things I'd love from you:

  1. Run it on your own domain in Claude and tell me what it finds.

  2. If you use both, which one handles it better, ChatGPT or Claude? I'm realy curious, honest answers welcome πŸ˜…

Thami

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For builders: we submitted to OpenAI and Anthropic the same day.

OpenAI approved in about 6 hours, Claude took 10 days.

Same rules worked for both: read-only tools, no credentials, one tool for the real question.

Happy to answer questions on either review.