Feature: Instafloss

How to enable Instafloss for MailUp

7min

Instafloss gives MailUp real-time capabilities! Follow the instructions to start preventing bounces before they happen:

Step 1. Copy the webhook URL from the Instafloss popup. 

You can find it by clicking on the Instafloss switch in your MailUp integration or during onboarding.

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Step 2. In MailUp, click Settings in the left sidebar

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Step 3. Click Advanced settings

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Step 4. Click Developer's corner

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Step 5. Click Webhooks

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Step 6. Click NEW WEBHOOK

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Step 8. Paste the webhook URL copied from step 3 into the Callback URL

Ensure the Active switch is green, select the List your want Instafloss enabled for, give it a Name, choose Subscribe from the Event dropdown, choose POST from the Method dropdown, choose your Source (most likely Recipient) and then click Save

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Step 9. (optional). Repeat steps 8 and 9 for each List and each Source you want Instafloss enabled for.



Step 10. Back in mailfloss, click the checkbox that you have completed the instructions, then click the button to turn on Instafloss.

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Please note that Instafloss is for real-time operations only. For bulk import/cleaning operations, see this article. Please do not send large batches of email addresses to the provided webhook address.

Updated 13 Feb 2025
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