Integrate Mailtrap with Slack to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Get Contact Lists from Mailtrap when New Message in Channels in Slack channels
Create Contact List in Mailtrap when New Message in Channels in Slack channels
Delete Contact List from Mailtrap when New Message in Channels in Slack channels
Update Contact in Mailtrap when New Message in Channels in Slack channels
Delete Contact Field in Mailtrap when New Message in Channels in Slack channels
Start from a real workflow other teams are already running.
Mailtrap
When this happens...
New Email Delivered
New Email Opened
New Email Received
Contact Unsubscribed
Slack
Automatically do this!
Send Message
Send Interactive Message
Send Block/buttons/Intractive message using AI
View_open BlockKit Modal using JSON
Chat_update slack block or message using messageTs
Send Message as Thread
Create Channel
Set Channel Topic
Message Private Channel
Create Private Channel
Get Thread Replies
Edit Channel Message
List all Private Channels
Find Public channel
Get Messages from Slack
Add Users to Channel
Send Direct Message
Get all Channel Members
Get User Information
Get User Complete Profile Details by ID
Create Canvas
List all Public Channels
Send Block Kit Message
Update Canvas
Lookup Canvas Sections
Get Contact Lists from Mailtrap when New Message in Channels in Slack channels
Use this flowCreate Contact List in Mailtrap when New Message in Channels in Slack channels
Use this flowDelete Contact List from Mailtrap when New Message in Channels in Slack channels
Use this flowUpdate Contact in Mailtrap when New Message in Channels in Slack channels
Use this flowDelete Contact Field in Mailtrap when New Message in Channels in Slack channels
Use this flowList Sandbox Messages from Mailtrap Sandbox when New Message in Channels in Slack channels
Use this flowRetrieve Test Email from Mailtrap when New Message in Channels in Slack channels
Use this flowRetrieve Test Email Text Body from Mailtrap when New Message in Channels in Slack channels
Use this flowGet Sandbox Email HTML Body from Mailtrap Sandbox when New Message in Channels in Slack channels
Use this flowCheck Test Email Spam Score with Mailtrap when New Message in Channels in Slack channels
Use this flowEverything you can automate between Mailtrap and Slack.
When this happensTriggers
A trigger is an event that starts a workflow.
Runs when an email is delivered to the recipient's mail server for a chosen sending stream or domain.
Runs when a recipient opens an email in the selected sending stream.
Runs when a new email arrives in a selected Mailtrap Inbound Email inbox. Includes the sender, recipients, subject, headers, text and HTML bodies, and attachments. Webhook signatures are verified before the flow runs.
Runs when a contact unsubscribes from emails in the selected sending stream.
Runs when a new message is received in a specific Slack channel. You can select which channel to monitor.
Triggers when a new user join workspace.
Action is the task that follows automatically within your Mailtrap integrations.
Get your contact lists and their IDs.
Add a new contact to Mailtrap.
Create a new Contact Lists.
Delete an existing Contact List.
Delete a contact by email address.
Update an existing contact's details 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.
Step-by-step video tutorials to help you connect apps, automate workflows, and save time.

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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 moreSlack is an AI-powered work platform for team communication, collaboration, project coordination, and workflow automation. It helps organizations centralize conversations, share files, manage channels, and integrate tools to keep work moving in one place.
Learn moreSign up for a free viaSocket account, then authorize both your Mailtrap and Slack 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 Slack 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 Slack. No coding required.
Yes. You can set up a workflow where Mailtrap triggers actions in Slack, and a separate workflow where Slack 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 Slack. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire Mailtrap and Slack integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.