Build a complete email CRM with Google Sheets & MailerSend

Open on n8n.io

$20/month : Unlimited workflows

2500 executions/month

Try free

THE #1 IN WEB SCRAPING

Scrape any website without limits

Try free

HOSTINGER

Early Deal
DISCOUNT 20%

Self-hosted n8n

Unlimited workflows - from $4.99/mo

Try free

#1 hub for scraping, AI & automation

6000+ actors - $5 credits/mo

Try free

Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

️ Automate MailerSend Email (Google Sheets) Overview This workflow converts Google Sheets into a full Email CRM — no HubSpot or Customer.io needed! It automates segmentation, sending, validatio...

Best for

Social Media automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, n8n-nodes-base.set, n8n-nodes-base.filter, n8n-nodes-base.if, n8n-nodes-base.wait, n8n-nodes-base.removeduplicates, n8n-nodes-base.stickynote, n8n-nodes-base.googlesheets

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Nima Salimi.

Original n8n.io source

1.1 Workflow description

Title: Build a complete email CRM with Google Sheets & MailerSend
Workflow name: Build a complete email CRM with Google Sheets & MailerSend

✉️ Automate MailerSend Email (Google Sheets)

🌐 Overview

This workflow converts Google Sheets into a full Email CRM — no HubSpot or Customer.io needed!
It automates segmentation, sending, validation, and delivery tracking using:

✅ Google Sheets → CDP + Email Performance DB
✅ MailerSend → Email Template Delivery
✅ n8n → Automation + Logic + Scheduling

It automatically: • Reads subscribers from a selected segment sheet
• Validates email + checks for disposable domains
• Sends a MailerSend email template
• Updates send status + delivery result in Sheets

Perfect for onboarding emails, promo campaigns, retention flows, newsletters & more!

✅ Key Features

• 🎯 Unlimited audience segments
• 🚫 Deduplication system per execution
• 🛡️ Disposable email filtering
• 🔄 Automatic recurring runs (every 30 minutes)
• 🧩 Template-based personalization (name, codes, journey)
• 📊 Real-time delivery tracking + analytics-ready data
• 🔐 Zero CRM vendor lock-in

📊 Database Sheets (Google Sheets Required)

Use this database template:
🔗 https://docs.google.com/spreadsheets/d/17KqltP-NqchPhZV7gk6QToqCZX6IiA5EBkDCBNsIX_0/edit?usp=sharing

Sheet Name	Purpose	Required Fields
`template`	Campaign configuration	Id, template_name, journey, type, type_template_id, discount_code
`segment1` / `segment2`	Audience lists	user_id, email, first_name, number
`transaction`	Status + results history	user_id, status, sent_result, sent_at, template_name

transaction

CreatedAt	UpdatedAt	user_id	email	number	first_name	status	database_id	type	template_id	type_template_id	template_name	journey	discount_code
2025-10-25T13:11:41.567-04:00	2025-10-25T13:11:41.567-04:00	uid_0000000001	[email protected]	9362000000	Liam	1-sending	segment1	email	1	v28xxl2sq8dg785k	SMS-TEST	Test	disxxx
2025-10-25T13:11:41.567-04:00	2025-10-25T13:11:41.567-04:00	uid_0000000002	[email protected]	9362000001	Noah	1-sending	segment1	email	1	v28xxl2sq8dg785k	SMS-TEST	Test	disxxx
2025-10-25T13:11:41.567-04:00	2025-10-25T13:11:41.567-04:00	uid_0000000003	[email protected]	9362000002	Oliver	1-sending	segment1	email	1	v28xxl2sq8dg785k	SMS-TEST	Test	disxxx

template

Id	template_name	journey	database_id	type	type_template_id	discount_code	gift_code
3	Order-Confirmation	Order	segment3	email	v28xxl2sq8dg785k	discount2
4	Shipping-Notification	Notification	segment4	email	v28xxl2sq8dg785c	discount3
5	Add-to-Cart-day1	Add-to-Car	segment5	email	v28xxl2sq8dg785d	discount4
6	Welcome-New-Customer	Welcome	segment6	email	v28xxl2sq8dg785s	discount5
7	Churn-Pro-Plan	Churn	segment7	email	v28xxl2sq8dg785g	proxc
8	Churn-Pro-Plan-1day-ago	Churn	segment8	email	v28xxl2sq8dg785h		shipx

segment1

user_id	email	number	first_name	database_id
uid_0000000001	[email protected]	09362000000	Liam	segment1
uid_0000000002	[email protected]	09362000001	Noah	segment1
uid_0000000003	[email protected]	09362000002	Oliver	segment1
uid_0000000004	[email protected]	09362000003	Elijah	segment1
uid_0000000005	[email protected]	09362000004	James	segment1

📌 Add more segments simply by creating new sheets (segment3, segment4...)
📌 Change campaign by updating template_id in Setup Flow node

👤 Who’s it for?

• Ecommerce email retention teams
• SaaS CRM automation operators
• Digital marketing & lifecycle pros
• Agencies running multi-brand campaigns
• No-code builders who want scalable CRM logic

⚙️ Automations Included

Flow 1 — Insert Users (Triggered on schedule)

• Pull users from selected segment tab
• Insert into transaction sheet
• Status: 0-processing → 1-sending
• Prevent duplicate sending ✅

Flow 2 — Send Emails (Runs every 30 min)

• Selects “ready” users (1-sending)
• Checks:

Missing email → 3-no-email
Disposable → 4-disposal-email • Sends via MailerSend template ID in sheet
• Updates status → 2-sent + message result

🎯 Your entire CRM sending logic runs automatically every day

🧠 Personalization Support

Available merge-fields: • first_name
• discount_code
• gift_code
(Modify jsonBody to add more!)

🔐 MailerSend Setup Required

Inside MailerSend node:

Replace “[email protected]” with your verified sender email ✅

You must: ✔ Verify domain
✔ Approve sender email
✔ Copy correct template ID → Google Sheet

💡 Optional Enhancements

• Slack alerts for failed sends
• Connect Looker Studio for dashboards
• Add SMS / WhatsApp parallel flows
• A/B test templates by duplicating rows
• Add AI for subject optimization or copy rewrite

📺 Connect With Me

More workflows, CRM strategy & AI marketing automation 👇
LinkedIn: https://linkedin.com/in/nima-salimi-a655a6231

Follow & ⭐️ this template if it helped you 🚀

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 2 - Setup Flow

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 3 - Map Data

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 4 - Filter Template

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.1

Block 5 - IF Template Parameters OK

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.1

Block 6 - IF user_id is not empty

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.1

Block 7 - Wait

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 8 - Remove Duplicates

Type / Role: n8n-nodes-base.removeDuplicates - removeDuplicates
Config choices: Version 2

Block 9 - IF Type Email

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.1

Block 10 - Schedule Trigger1

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 11 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 13 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 17 - If email is not empty

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.1

Block 18 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 19 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Disposal Check

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.1

Block 21 - Get user_id from cdp

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 22 - Add records By Status Processing

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 23 - Insert Data By Status Processing

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 24 - Change Status to Sending

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Showing the first 24 of 34 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Build a complete email CRM with Google Sheets & MailerSend
Complexity	advanced
Nodes	34
Categories	Social Media
Author	Nima Salimi
Published	25 Oct 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/10179/10179.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Social Media workflows

Frequently asked questions

What does Build a complete email CRM with Google Sheets & MailerSend do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Social Media use case.

Nima Salimi

8 workflows

Nodes

n8n-nodes-base.scheduletrigger n8n-nodes-base.set n8n-nodes-base.filter n8n-nodes-base.if n8n-nodes-base.wait n8n-nodes-base.removeduplicates n8n-nodes-base.stickynote n8n-nodes-base.googlesheets

Complexity

advanced

Published 25 Oct 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/10179/10179.json

Share Your Workflow

Have a useful automation to share? Publish it and help the community.

Submit Your Template How to Submit

Related Workflows

Promote YouTube uploads to social channels with DeepSeek and Posta

## Quick overview This workflow fetches the latest video from a YouTube channel feed, generates platform-specific promo captions with DeepSeek, and creates draft promotion posts in Posta for active social media accounts. You can automatically promote your videos to all your social media. Add a "publish" at the end for auto-post. ## How it works 1. Runs manually when you click “Execute workflow”. 2. Fetches your YouTube channel RSS feed over HTTP, parses the XML, and extracts the latest video’s title, description, thumbnail URL, and link. 3. Downloads the video thumbnail and uploads it to Posta to create a reusable media asset. 4. Retrieves your social accounts from Posta, keeps only active accounts, and de-duplicates them to one account per platform. 5. Combines the latest video data with each target platform and asks DeepSeek (via an n8n LangChain LLM chain) to write a tailored promotional caption per platform. 6. Tags each generated caption with its platform and merges it back to the matching Posta social account. 7. Creates a draft Posta post per selected account, attaching the uploaded thumbnail and the platform-specific caption and video link. 8. (Optional) Add a "publish a post" at the end to automatically post to the social media channels (If you are feeling brave and trust the LLM), ## Setup 1. Add a Posta API credential and select it in the Posta nodes that list accounts, upload media, and create posts. 2. Add a DeepSeek API credential and select it in the DeepSeek Chat Model node. 3. Update the YouTube channel feed URL (channel_id) in the HTTP request that downloads the YouTube feed. 4. Review your Posta social accounts to ensure the intended accounts are marked active and have the correct platform values for de-duplication. ## Additional info Video explanation: https://youtu.be/tTWaYb71YyA

View

Post scheduled Threads updates from Google Sheets with error tracking

## Quick overview This workflow runs hourly to read the next pending post from Google Sheets, publishes it to Threads via the Threads Graph API, and then updates the sheet with published or failed status plus timestamps and error details. ## How it works 1. Runs every hour on a schedule. 2. Reads the first row in Google Sheets where the status column equals pending. 3. Retrieves the authenticated Threads account’s user ID from the Threads Graph API. 4. Creates a Threads text post container using the content from the pending Google Sheets row. 5. Publishes the post to Threads and updates the same Google Sheets row as published with posted_at and updated_at timestamps. 6. If any Threads API call fails, records the error message and marks the corresponding Google Sheets row as failed with an updated_at timestamp. ## Setup 1. Create a Meta app and generate a Threads access token, then add it to an HTTP Header Auth credential used for the Threads Graph API requests. 2. Set up a Google Sheets Service Account credential in n8n and share your target spreadsheet with the service account email. 3. Replace the placeholder Google Sheet ID in all Google Sheets nodes and confirm the sheet name is Sheet1 (or update it to match your sheet). 4. Ensure your sheet has the required columns (row_number, content, status, posted_at, updated_at, error_message) and set status to pending for posts you want published.

View

Send a daily product newsletter with Google Sheets and Gmail

## Quick Overview This workflow runs daily at 08:00, pulls products scheduled for today from Google Sheets, generates an HTML newsletter email, and sends it to each subscriber via Gmail. ## How it works 1. Runs every day at 08:00 on a schedule. 2. Reads all rows from the `newsletter_products` sheet in Google Sheets. 3. Keeps only products whose `send_date` matches today’s date and stops if none are found. 4. Builds an HTML email and subject line containing a card for each product (image, description, and optional referral link). 5. Reads the subscriber list from the `newsletter_recipients` sheet in Google Sheets. 6. Sends the generated newsletter to each recipient individually using Gmail. ## Setup 1. Create or copy a Google Sheets document with `newsletter_products` (including a `send_date` column) and `newsletter_recipients` (including an `email` column). 2. Add a Google Sheets OAuth2 credential in n8n and paste your Google Sheet ID into the Config step. 3. Add a Gmail OAuth2 credential and confirm the sender mailbox to use for sending the newsletter. 4. Add products and recipients to the sheet, run a test execution, and adjust the schedule/timezone if needed before activating.

View

Need Custom Automation?

Get help designing a custom n8n workflow that connects your stack and fits your process.

Build a complete email CRM with Google Sheets & MailerSend

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

✉️ Automate MailerSend Email (Google Sheets)

🌐 Overview

✅ Key Features

📊 Database Sheets (Google Sheets Required)

transaction

template

segment1

👤 Who’s it for?

⚙️ Automations Included

Flow 1 — Insert Users (Triggered on schedule)

Flow 2 — Send Emails (Runs every 30 min)

🧠 Personalization Support

🔐 MailerSend Setup Required

💡 Optional Enhancements

📺 Connect With Me

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - Setup Flow

Block 3 - Map Data

Block 4 - Filter Template

Block 5 - IF Template Parameters OK

Block 6 - IF user_id is not empty

Block 7 - Wait

Block 8 - Remove Duplicates

Block 9 - IF Type Email

Block 10 - Schedule Trigger1

Block 11 - Sticky Note

Block 12 - Sticky Note1

Block 13 - Sticky Note2

Block 14 - Sticky Note3

Block 15 - Sticky Note4

Block 16 - Sticky Note5

Block 17 - If email is not empty

Block 18 - Sticky Note6

Block 19 - Sticky Note7

Block 20 - Disposal Check

Block 21 - Get user_id from cdp

Block 22 - Add records By Status Processing

Block 23 - Insert Data By Status Processing

Block 24 - Change Status to Sending

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions