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Send personalized cold email follow-ups from Google Sheets with ZeptoMail

Workflow preview

Send personalized cold email follow-ups from Google Sheets with ZeptoMail preview
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Overview

Automated Cold Email Follow-up Sequence with Google Sheets & ZeptoMail

Stop losing leads to manual follow-up fatigue. This workflow runs daily, checks your Google Sheets lead tracker, and automatically sends the right follow-up email at the right time — personalized by partner type (College, Influencer, or Brand) — then updates the sheet status so nothing slips through the cracks.

Who is this for?

Founders, sales reps, and growth teams who manage outreach to multiple partner types and need a reliable, hands-off follow-up engine without a full CRM.

What this workflow does

  1. Triggers daily via Schedule node
  2. Reads your Google Sheet to fetch all leads
  3. Filters active leads — skips anyone marked completed, replied, or unsubscribed
  4. Checks follow-up date — only processes leads due today or earlier
  5. Routes each lead by their current stage (sent → followup_1 → followup_2 → completed)
  6. Builds a personalized HTML email based on partner type (College/University, Influencer, Brand, or generic)
  7. Sends via ZeptoMail with threading headers to keep replies in the same email thread
  8. Updates the Google Sheet with the new status and next follow-up date

Prerequisites

  • A self-hosted n8n instance (community nodes required)
  • A Google Sheets account with OAuth connected
  • A Zoho ZeptoMail account with API access
  • The community node installed: n8n-nodes-zohozeptomail

Google Sheet structure

Your tracking sheet should have (at minimum) these columns:

Column Description
Email Lead's email address
name Lead's full name
partner_type One of: college, influencer, brand
status Current stage: sent, followup_1, followup_2, completed, replied, unsubscribed
follow_up_date Date the next follow-up should be sent (YYYY-MM-DD)
message_id (Optional) Original email Message-ID for threading

Setup steps

  1. Install the community node n8n-nodes-zohozeptomail in your n8n instance
  2. Connect Google Sheets — add your OAuth credentials in n8n
  3. Connect ZeptoMail — add your API key credentials
  4. Update the Google Sheet ID and sheet name in the Read Tracking Sheet node
  5. Replace placeholder values in the Code nodes:
  • [YOUR COMPANY], [YOUR NAME], [YOUR EMAIL]
  • https://calendly.com/REPLACE_WITH_CALENDAR_LINK
  1. Set the workflow to Active — it will run automatically every day

Customization

  • Add new partner types by extending the getTemplate() function in the Build Email Code nodes
  • Adjust follow-up timing by changing the date written back to the sheet in the Update Status nodes
  • Add more stages beyond followup_2 by extending the Switch node and duplicating the email builder pattern

⚠️ Important notes

  • This workflow requires a self-hosted n8n instance — it will not run on n8n Cloud due to the community node dependency
  • Leads are skipped (not deleted) if their status is completed, replied, or unsubscribed — safe to keep all history in one sheet
  • ZeptoMail threading headers (In-Reply-To, References) are set automatically if message_id is present in the sheet