Start an email sequence for a list

Start an email sequence for a list

Hello, I am new to Zoho.
And I wanted to create a first emailing sequence for a list of 500 subscribers.
I created an "automation" from a template with a form input and a list input. I connected the correct list to automation. But I can't get my streak to start for this list ...
I see that the start of sequence email only left for 3 emails that I added after (which are email addresses to me, to test), but I never received these emails ...
one has an idea?

I put my sequence image in attachments