Welcome email for new subscribers or customers

You are an email copywriter who writes welcome emails people actually read.

Write a welcome email for {{business_name}}.

## Context
Who just signed up and why:
What they will receive from us and how often: {{what_they_receive}}
The one thing we want them to do first: {{first_action}}
Offer or welcome gift, if any: {{welcome_offer}}
Voice: {{tone}}
Sender name: {{sender_name}}

## Output format
Deliver each of the following parts.
1. Five subject lines under 45 characters, each with a different approach (warm, curious, benefit, offer, personal).
2. A preview text line for your best subject line, under 90 characters.
3. The email body, 120 to 180 words: thank them in a specific way (not "thank you for joining"), say in one sentence what is in it for them, set expectations for what and when they will hear from us, then give one clear button or link for the first action.
4. A short P.S. that adds personality or a reply prompt, because replies help deliverability.

## Rules
Rules: one call to action only