Integrate Mailtrap with Nutshell to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Start from a real workflow other teams are already running.
Mailtrap
When this happens...
New Email Delivered
New Email Opened
New Email Recieved
When a contact unsubscribes
Nutshell
Automatically do this!
Find User
Create Company
List Users
List Account
List Account Type
List Activities
List Activity Types
List Custom Fields For Leads
List Items For Leads
List Leads
List Contacts
List Applicable Custom Fields
List Notes
List lead products
List Sources
List Stages
List Pipelines
List Tags
Find Customers
Find Leads
Create Person
Create Lead
Create Tag
Find Leads in Nutshell when New Email Delivered to Mailtrap
Use this flowList Account in Nutshell when New Email Opened in Mailtrap
Use this flowFind Leads in Nutshell when New Email Opened in Mailtrap
Use this flowList Account Type in Nutshell when New Email Recieved in Mailtrap
Use this flowCreate Lead in Nutshell when New Email Recieved in Mailtrap
Use this flowList Applicable Custom Fields in Nutshell when When a contact unsubscribes from Mailtrap
Use this flowGet Sandbox Email HTML Body from Mailtrap Sandbox when New Lead Created in Nutshell
Use this flowClear Sandbox Inbox in Mailtrap when New Lead Created in Nutshell
Use this flowDelete a Contact Field in Mailtrap when New Lead Marked Won in Nutshell
Use this flowClear Sandbox Inbox in Mailtrap when New Lead Marked Won in Nutshell
Use this flowEverything you can automate between Mailtrap and Nutshell.
When this happensTriggers
A trigger is an event that starts a workflow.
Runs when new email is delivered to the recipient's mail server for a chosen sending stream or domain.
Runs when a new email open event occurs in the selected sending stream.
Runs when a new email arrives in a selected inbox.
Runs the workflow automatically whenever a contact unsubscribes from emails in the selected sending stream.
Runs when a new lead is created in Nutshell, within a configurable polling window.
Runs when a lead is marked won within a chosen time window.
Action is the task that follows automatically within your Mailtrap integrations.
Allows you to get the list of your Lists and their IDs.
Creates a new contact.
Creates a new Contact Lists.
Delete existing Contact List.
Deletes Contact by his email.
Allows you to update Contact in Mailtrap

Follow a simple walkthrough to create, test, and launch your first automation.
Connect your apps
Link the apps you want to automate.
Configure your workflow
Set up triggers, actions, and map your data.
Test & publish
Test your workflow and publish it.
Recognized by leading review platforms and trusted by 10,000+ businesses worldwide.
Just describe the task in plain English. viaSocket AI selects the right apps, builds the workflow, maps the fields, and prepares everything for review before you publish.

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Mailtrap is an email delivery platform covering email sending (API/SMTP) bundled with inbound email, also featuring email testing (Sandbox), and Email Marketing. It's used by developer and product teams for transactional and bulk email delivery and offers reliable sending tools with built-in deliverability protection, including separation between transactional and bulk email, automatic authentication setup, and analytics insights broken down by mailbox provider.
Learn moreNutshell is an affordable, easy-to-use CRM that helps small-business sales teams win more deals.
Learn moreSign up for a free viaSocket account, then authorize both your Mailtrap and Nutshell accounts. From there, pick a trigger in one app and an action in the other. Your first workflow can be live in under five minutes.
Yes. viaSocket uses instant triggers where available, so data moves between Mailtrap and Nutshell as soon as the event happens. Scheduled polling triggers run at a maximum interval of 15 minutes.
Yes. You can map specific fields, apply filters to skip records that do not match your conditions, and transform values before they reach Nutshell. No coding required.
Yes. You can set up a workflow where Mailtrap triggers actions in Nutshell, and a separate workflow where Nutshell triggers actions in Mailtrap. Both run independently and in real time.
viaSocket logs every run so you can see exactly what succeeded and what failed. Failed tasks can be retried from the dashboard without re-configuring the workflow.
Yes, there is a free plan that covers basic workflows between Mailtrap and Nutshell. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire Mailtrap and Nutshell integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.