Verify mailing address deliverability of new contacts in Groundhogg using Lob
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 6 nodes and runs when an HTTP POST request hits its webhook URL. It uses only n8n's built-in nodes. It also calls api.lob.com over HTTP.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Set Address Fields (Edit Fields (Set)): sets 5 fields: address, address2, city…
- Address Verification (HTTP Request): calls api.lob.com (POST)
- Switch: routes items into 2 branches
- Update Groundhogg - Deliverable (HTTP Request): calls an HTTP API (POST)
- Update Groundhogg - NOT Deliverable (HTTP Request): calls an HTTP API (POST)
HTTP calls to: api.lob.com
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (4)
- Edit Fields (Set)
n8n-nodes-base.set - Webhook
n8n-nodes-base.webhook - HTTP Request
n8n-nodes-base.httpRequest - Switch
n8n-nodes-base.switch
From the author
This n8n workflow verifies the deliverability of mailing addresses stored in Groundhogg CRM by integrating with Lob’s address verification service. Who is this for? This template is designed for Groundhogg CRM users who need to ensure the accuracy of mailing…