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How to Test Your Email Provider's Deliverability

So here’s what I did.

For building the actual email first, How to Build Emails with Claude Code and MJML covers that part.

1. First Stop: Mail-Tester

I went to mail-tester.com, grabbed the weird little temporary email address they gave me, added it to my Loops list, and sent my email.

Score came back great. 9.5/10. Huge win.

2. Then I Tried My Personal Gmail

I added my own personal email to the Loops list because I wanted to see where it actually lands in a real inbox.

It didn’t go to Spam (yay), but it also didn’t hit my inbox.
Instead it went to this weird purgatory: All Mail.

No clue why Gmail does this, but it’s not the inbox and it’s not spam… it’s like the middle child.

3. So Now the Question Is: How Do I Fix That?

And honestly… I don’t know if I can fully fix that myself. At least not instantly.

I’m now going to run some tests by asking 10 friends to help me out.


A note from Alex: this one was written by me.

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