A bounced email means a customer did not get your message. FlowMattic catches each new Optimizely bounce and posts it to Slack, to the people who look after deliverability or straight to the account manager for that customer's company. For marketing operations teams who send campaigns through Optimizely.
1 trigger 14 actions 6 example workflows 2 ready-made templates Unlimited runs
When this happens in Optimizely1 trigger
Do this in Slack14 actions
1. TriggerNew Bounce2. ActionSend Channel MessageWhen Optimizely fires New Bounce, FlowMattic runs Send Channel Message in Slack with the data from that event.
You build this in the FlowMattic workflow builder on your own site. See the setup steps
Each one uses only triggers and actions the two integrations ship today, plus FlowMattic's own tools. Where the library has a ready-made template, import it instead of building from scratch.
Ready-made templateEach bounce posts the address, campaign and reason to the marketing channel, so a broken list or a bad import shows up while the campaign is still going out.
New BounceSend Channel Message
View the template Text Formatter takes the domain from the address, a Lookup Table matches it to the account manager, and they get a direct message to find a working contact.
New BounceText FormatterLookup TableFind User by EmailSend Direct Message
Send Private Channel Message posts each bounce where only the email team reads it, so recipient addresses are not shared with the whole company.
New BounceSend Private Channel Message
Bounce reasons arrive as server codes. An AI Agent turns each one into a short note saying whether the address is dead, the mailbox is full or the server refused the message.
New BounceAI AgentSend Channel Message
A Filter passes bounces from the campaigns you name, such as invoices or account notices, so the channel shows the bounces that need a person to act.
New BounceFilterSend Channel Message
Set Channel Topic writes the time and campaign of the latest bounce, so anyone opening the email channel can see whether bounces are still coming in.
New BounceSet Channel Topic
At the end, each new bounce Optimizely records posts the address, campaign and reason in your Slack channel.
Under Connects in FlowMattic, add the Slack workspace of your marketing team.
Create a workflow with Optimizely and the New Bounce trigger, and complete the connection the trigger step asks for.
Send a test to an address you know will bounce, or wait for a real one, so FlowMattic has the bounce fields.
Add Slack Send Channel Message, choose the channel, map the address, campaign and reason, test the step and switch the workflow on.
1. Trigger in Optimizely
New Bounce
2. Action in Slack
Send Channel Message
Fields mapped from the earlier steps (a typical setup)
| From Optimizely | To Slack |
|---|---|
| Recipient email | Message: address |
| Campaign or mailing | Message: campaign |
| Bounce reason | Message: reason |
| Bounce time | Message: when |
A trigger starts a workflow. An action is something FlowMattic does in the app as a step.
Optimizely and Slack connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.
Bounces from important campaigns reach a person who can fix the address, instead of sitting in a report nobody opens.
Each bounce passes through your own WordPress server to a channel you choose, not through another company's automation account.
Runs are unlimited on every FlowMattic plan, so a campaign with many bounces costs nothing extra.
Create a FlowMattic workflow with the Optimizely New Bounce trigger, complete its connection, then add Slack Send Channel Message with the address, campaign and reason mapped into the text.
Yes. Take the domain from the address with Text Formatter, match it to an owner in a Lookup Table, then use Find User by Email and Send Direct Message.
Yes. Add a Filter after New Bounce that passes only the campaign names you care about. Other bounces end without a message.
No. The workflow posts each bounce to Slack so a person can decide. List hygiene stays in Optimizely, where suppression is handled.
Yes. Add a Google Sheets or WP Tables step to the same workflow, so each bounce is posted to Slack and kept in a table you can sort by campaign.
Did not find your answer? You can browse the help center or ask us directly.
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Reviewed 27 Oct 2026. The example workflows are written with AI from the real triggers and actions of both integrations and checked against them. Optimizely integration 1.0.0, Slack integration 1.0.
