Full list

Supported Triggers & Actions

Everything you can automate between Mailsac and Postmark.

When this happensTriggers

A trigger is an event that starts a workflow.

New Email Received

New Email Received

Triggers when a new email message is received in a specified inbox.

Email Bounces

Email Bounces

Runs when an email sent through Postmark bounces.

New Inbound Email

New Inbound Email

Runs when a new inbound email is received

New Outbound Email Is Sent

New Outbound Email Is Sent

Runs when a new outbound email is sent

New Message Stream

New Message Stream

Runs when new message stream is created

Request a new Trigger for Mailsac

Do thisActions

Action is the task that follows automatically within your Mailsac integrations.

Delete Email Message

Delete Email Message

Delete an email from the inbox using its message ID.

Move Message to Folder

Move Message to Folder

Move an email to Inbox, Spam, or Trash for better organization.

Set Message Read/Unread

Set Message Read/Unread

Mark an email as read or unread by toggling its status.

Star Message

Star Message

Mark an email as important so it won’t be automatically deleted when your mailbox is full.

Add Label To Message

Add Label To Message

Add a label to an email to help organize messages.

Remove Label From Message

Remove Label From Message

Remove a label from a message to ungroup or reorganize it.

How to build your first workflow with viaSocket
2-Minute Guide

Learn how to build your first workflow

Follow a simple walkthrough to create, test, and launch your first automation.

  1. 1

    Connect your apps

    Link the apps you want to automate.

  2. 2

    Configure your workflow

    Set up triggers, actions, and map your data.

  3. 3

    Test & publish

    Test your workflow and publish it.

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Integrations Mailsac
Mailsac + Postmark
Mailsac logo

About Mailsac

Mailsac is a versatile email testing and disposable email service that allows developers and testers to receive and test emails without the need for a permanent email address. It is ideal for testing email workflows, verifying email functionalities, and ensuring that email communications are working as intended in applications.

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Integrations Postmark
Postmark + Mailsac
Postmark logo

About Postmark

Postmark is a reliable and fast email delivery service designed for developers. It ensures your transactional emails are delivered quickly and accurately, providing detailed analytics and insights.

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Frequently Asked Questions

How do I connect Mailsac and Postmark?

Sign up for a free viaSocket account, then authorize both your Mailsac and Postmark 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.

Does this integration work in real time?

Yes. viaSocket uses instant triggers where available, so data moves between Mailsac and Postmark as soon as the event happens. Scheduled polling triggers run at a maximum interval of 15 minutes.

Can I control which data gets sent from Mailsac to Postmark?

Yes. You can map specific fields, apply filters to skip records that do not match your conditions, and transform values before they reach Postmark. No coding required.

Can the integration run in both directions?

Yes. You can set up a workflow where Mailsac triggers actions in Postmark, and a separate workflow where Postmark triggers actions in Mailsac. Both run independently and in real time.

What happens if a step in the workflow fails?

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.

Is viaSocket free to use?

Yes, there is a free plan that covers basic workflows between Mailsac and Postmark. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.

Do I need to know how to code to set this up?

No. The entire Mailsac and Postmark integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.