This article provides a complete, practical walkthrough of the Mautic Slack Send Triggered n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:  
   Automatically Validate New Mautic Contacts and Alert Suspicious Emails with n8n
   
   Meta Description:  
   Learn how this n8n workflow automates email validation for new Mautic contacts and notifies your team on Slack if signs of fake, disposable, or low-quality email addresses are detected.
   
   Keywords:  
   n8n, Mautic, email validation, One Simple API, Slack automation, disposable email detection, marketing automation, suspicious email alert, Mautic contact workflow, contact intelligence
   
   Third-party APIs Used:
   
   1. Mautic API – to trigger the workflow when a new contact is created.
   2. One Simple API – to validate email address integrity, domain validity, and disposability.
   3. Slack API – to send alert messages when suspicious emails are detected.
   
   Full Article:
   
   In today's digital landscape, ensuring the quality of your contact list is vital for successful marketing and sales automation. Disposable or suspicious email addresses not only damage your deliverability but also waste resources. Thankfully, with platforms like n8n—a powerful open-source workflow automation tool—you can easily implement safeguards that automatically screen new contacts in your customer relationship management (CRM) system.
   
   This article walks through a custom n8n workflow designed to validate new Mautic contact emails, filter out low-quality addresses, and notify your team on Slack when a suspicious new contact is identified.
   
   🚀 Workflow Overview
   
   This n8n workflow is titled "Check for Valid Mautic Contact Email" and is built to automate the following sequence of actions:
   
   1. Monitor Mautic for newly created contacts.
   2. Extract and verify the email address of each new contact.
   3. Use the One Simple API to assess email validity and risk.
   4. If the email is deemed suspicious, send an alert to a designated Slack channel.
   
   Let’s break down each step in detail.
   
   🔔 Step 1: Trigger – On Contact Identified
   
   The workflow begins with a Mautic Trigger node. It listens for the event mautic.lead_post_save_new, which fires when a new contact is created. This allows the automation to focus solely on new entries in your Mautic instance.
   
   📌 Step 2: Check If Contact is New
   
   An If node is used to ensure that the contact being inspected is actually new. This double-check helps avoid examining updated contacts or non-intended workflows.
   
   📦 Step 3: Extracting Contact Information
   
   Once we’ve confirmed the contact is new, the workflow uses an Item Lists node to extract core information from the payload—particularly the name and email address. This isolated data is vital for the email validation step that follows.
   
   📧 Step 4: Email Validation with One Simple API
   
   The extracted email address is passed to the validate email node, which uses the One Simple API to determine:
   - Deliverability status (e.g., GOOD, BAD)
   - Domain validity
   - Whether the email is disposable
   
   This triage helps to identify if the email is a throwaway or could cause future issues.
   
   ⚠️ Step 5: Identify Suspicious Emails
   
   Another If node checks the results of the validation. An email is marked as suspicious if:
   - Deliverability ≠ GOOD
   - Domain is invalid
   - Email is disposable
   
   This part of the logic ensures that even if just one of these checks fails, the contact is flagged for manual review.
   
   📲 Step 6: Send Alert to Slack
   
   If an email fails validation, a Slack node sends an alert to a specific channel (#mautic-alerts in this workflow). The alert includes:
   - First and last name of the contact
   - Email address
   - A direct link to the contact in Mautic
   - Name of the user who created the contact
   
   This provides team members with actionable context to decide on the next steps, such as further vetting or deletion.
   
   🛠 APIs in Use
   
   This workflow seamlessly integrates with three key third-party services:
   
   1. Mautic API via OAuth2
  
      Used to monitor contact creation in your CRM.
   
   2. One Simple API
  
      Powers the email validation step, offering info on deliverability, domain integrity, and disposability.
   
   3. Slack API
  
      Delivers real-time alerts to your team when suspicious contacts are added to Mautic.
   
   💡 Benefits of This Workflow
   
   - Saves time by automating a crucial part of contact hygiene.
   - Improves email campaign performance by flagging low-quality addresses early.
   - Helps keep your Mautic database clean and reliable.
   - Prevents future issues related to fake or temporary emails.
   - Provides transparency to your CRM and marketing teams via Slack.
   
   🔚 Conclusion
   
   This “Check for Valid Mautic Contact Email” workflow is a smart and low-effort way to maintain the health of your contact database. By leveraging n8n’s no-code interface along with powerful APIs, it bridges your marketing CRM (Mautic), an email intelligence service (One Simple API), and team communication (Slack) in a single, automated system.
   
   Integrate this into your own infrastructure today, and take a proactive approach to better contact management and smarter marketing automation.

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.