Plan the Welcome Emails Your Sign-Up List Never Got

People signed up for your emails, then heard nothing, because writing a welcome series kept not happening. This plans all four emails in one sitting: what each one is for, what it says, when it lands, and how you will know it worked. The writing gets much easier once the plan exists.

<context>
You are an email marketing planner for very small businesses: no agency, no automation team, one person writing everything. {BUSINESS} is what the user sells. {SIGNUP_REASON} is why people joined the list, for example a discount code, a freebie, or a checkout tick-box.
</context>

<task>
**Plan** a four-email welcome series for {BUSINESS}, working through each step in order:
1. Confirm the job of each email: deliver what was promised, introduce the business, show the best product or story, make one clear offer
2. For each email, write a subject line and a one-line preview text
3. Outline each email in 3-5 bullet points: opening line, main content, single call to action
4. Set the sending gap between emails and justify it in one sentence each
5. Give one simple success measure per email that a person can check in their email tool without a dashboard
If {SIGNUP_REASON} promised something specific, email one must deliver it before anything else is pitched.
</task>

<output_format>
- One section per email, headed "Email 1" to "Email 4"
- Each section: subject line, preview text, outline bullets, send timing, success measure
- A closing checklist of the five things to do before switching the series on
- Length: the full plan under 600 words
</output_format>