Connect FastBill and Mailtrap
Integrate FastBill with Mailtrap to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Update Contact in Mailtrap when New Offer in FastBill
Retrieve Test Email from Mailtrap when New Offer in FastBill
Get Sandbox Email HTML Body from Mailtrap Sandbox when New Offer in FastBill
Clear Sandbox Inbox in Mailtrap when New Offer in FastBill
Send Sandbox Email with Mailtrap when New Offer in FastBill
Popular FastBill + Mailtrap flows
Start from a real workflow other teams are already running.
Choose a trigger
FastBill
When this happens...
New Offer
New Customer
Customer Updated
Customer Deleted
New Invoice
Invoice Completed
Invoice Canceled
Offer Updated
New Contact
Contact Updated
Contact Deleted
Choose an action
Mailtrap
Automatically do this!
Get Contact Lists
Create Contact
Create Contact List
Delete Contact List
Delete a Contact
Update Contact
Delete a Contact Field
Send Transactional Email
List Sandbox Messages
Retrieve Test Email
Retrieve Test Email Text Body
Get Sandbox Email HTML Body
Check Test Email Spam Score
Analyze Test Email HTML
Forward Test Email
Mark Test Email as Read
Delete Test Email
Clear Sandbox Inbox
Send Sandbox Email
Update Contact in Mailtrap when New Offer in FastBill
Use this flowRetrieve Test Email from Mailtrap when New Offer in FastBill
Use this flowGet Sandbox Email HTML Body from Mailtrap Sandbox when New Offer in FastBill
Use this flowClear Sandbox Inbox in Mailtrap when New Offer in FastBill
Use this flowSend Sandbox Email with Mailtrap when New Offer in FastBill
Use this flowGet Contact Lists from Mailtrap when New Customer in FastBill
Use this flowUpdate Contact in Mailtrap when New Customer in FastBill
Use this flowCreate Contact in Mailtrap when Customer Updated in FastBill
Use this flowDelete Contact List from Mailtrap when Customer Updated in FastBill
Use this flowDelete a Contact from Mailtrap when Customer Updated in FastBill
Use this flowSupported Triggers & Actions
Everything you can automate between FastBill and Mailtrap.
When this happensTriggers
A trigger is an event that starts a workflow.
New Offer
Triggers when a new offer was created within your FastBill account.
New Customer
Triggers when a new customer is created within your FastBill account.
Customer Updated
Triggers when a customer is updated within your FastBill account.
Customer Deleted
Triggers when a customer is deleted within your FastBill account.
New Invoice
Triggers when a new invoice is created within your FastBill account.
Invoice Completed
Triggers when an invoice is completed within your FastBill account.
Do thisActions
Action is the task that follows automatically within your FastBill integrations.
Create Customer
Creates a new customer in FastBill.
Create Invoice
Creates a new invoice.
Add Payment for Invoice
Adds full payment for an invoice.
Send Invoice by Email
Send an invoice by email.
Create Revenue
Creates a revenue entry.
Add Payment for Revenue
Adds full payment for a revenue.
Learn how to build your first workflow
Follow a simple walkthrough to create, test, and launch your first automation.
- 1
Connect your apps
Link the apps you want to automate.
- 2
Configure your workflow
Set up triggers, actions, and map your data.
- 3
Test & publish
Test your workflow and publish it.
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AI will build it for you
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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About FastBill
FastBill is a cloud app for German invoicing & accounting. Writing offers and invoices, paying your bills or preparing your tax return is easier than ever with FastBill.
Learn moreSimilar apps
About Mailtrap
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 moreSimilar apps
Frequently Asked Questions
Sign up for a free viaSocket account, then authorize both your FastBill and Mailtrap 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 FastBill and Mailtrap 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 Mailtrap. No coding required.
Yes. You can set up a workflow where FastBill triggers actions in Mailtrap, and a separate workflow where Mailtrap triggers actions in FastBill. 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 FastBill and Mailtrap. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire FastBill and Mailtrap integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.
