Personalized welcome emails for new Systeme.io opt-ins

Build an agent workflow that sends a personalized welcome email the moment a new contact opts into one of my Systeme.io funnels.

Trigger: an incoming webhook from Systeme.io. I will configure the outgoing webhook inside Systeme.io to fire on the Contact Created and Opt-In events. The webhook payload includes the contact's id.

When the webhook fires, the agent should:

1. Call Systeme.io's Get Contact operation with the contact id from the webhook payload to load the contact's email, first name, tags, and custom fields.

2. Infer which funnel or lead magnet the contact signed up for by reading the tags and custom field values. For example, a tag like guide-saas-pricing or a custom field like lead_magnet should shape the subject line and opening of the email.

3. Draft a short, warm welcome email addressed to the contact by first name when one is available. The email should reference the specific resource they signed up for, briefly set expectations for what is next (delivery of the resource, one or two follow-up emails, anything else they should know), and include a one-line invitation to reply if they have questions. Keep it human and conversational. Do not use em dashes. Do not fall back to a generic template that ignores the tags.

4. Send the email from my Gmail account using Gmail's Send a Message operation. Put the contact's email in the To field, use a plain-text body, and write a subject line that hints at the specific resource rather than a generic Welcome.

If the contact has no useful tags or custom fields yet, fall back to a brief generic welcome that thanks them for joining and tells them their resource is on the way, rather than skipping the email entirely.

The email should sound like it is coming from me personally, not from a marketing system.