Everyone's busy and their inbox is already full. Why add to the problem with a longwinded email? People generally like short, concise emails better than long ones because concise emails have an obvious focus. Plus, when your users are scanning through all their emails in a short amount of time, they're more likely to find the overall message before deciding to take any action.
Navigate to the signup form you use to collect new contacts, and sign up. People can only receive a welcome automation once, so you should use an email address that hasn't received the automation before. If you sign up with an address that’s already been through the automation, you won’t receive it. This is true even if you delete your address and try to sign up again.
That isn’t to say that sales-y promotions couldn’t ever create results—as marketing “gurus” have proved. The results just aren’t as good as they could be. Take the biggest gurus’ results—the ones they boast about—and calculate their conversion rates. Often their marketing is comparatively ineffective. They just have massive volume, so the sales numbers are impressive.