Webhook Action Missing in SmarterMail Events

Idea shared by Rafael Grecco - 9/26/2025 at 12:36 PM

Completed

Hello,

I’m working on an integration between my Smartermail installation and a third-party provider for email timestamp certification.

For this, my plan is to use SmarterMail Events for "Message Sent", and set the action to Webhook, which will call a middleware I’m developing. This middleware will then make the request to the third-party provider’s API.

A few weeks ago, I saw the Webhook option available on a development/test environment I had. However, after doing a fresh reinstall with a clean and updated version of SmarterMail (build 9399 running on Ubuntu 24), I no longer see Webhook as an available Action.

What are the prerequisites for this option to appear?

Thanks!

8 Replies

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Rafael Grecco Replied

9/29/2025 at 6:31 AM

I've noticed that "Send Webhook" was removed from the Event Type "Message Sent", it's only available on "Bounce Received".

Is there any reason for that? How do I send a Webhook when a specific message is sent? (filtered either by e-mail address or subject)

Vince Replied

10/14/2025 at 4:54 AM

Hi Rafael,

Where you able to figure this out. I want to do the same and I noticed that the webhook isn't an option when event type is "message received". I need to alert a 3rd party app that an email was received via webhook. upon receiving the notification, download an email from the mailbox as apposed to polling the mailbox every few minutes.

Does anyone know of another way of doing this?

Thank You

Rafael Grecco Replied

10/14/2025 at 7:05 AM

Hi Vince,

No, I wasn’t able to make it work using Webhook. In my case, I needed to use “message sent,” so I took a different approach. I used the "SMTP Accounts" option under "Connectivity", where I created a fictional email address that connects to a middleware I developed using SMTP. This middleware then calls an API.

In your case, maybe you could use "Content Filter" to forward received messages to a custom application, then this application sends/activates the webhook.

Vince Replied

10/14/2025 at 5:30 PM

Hi Rafael,

Thanks for the suggestion, i need to have the webhook fire when a message is received.

Vince

SmP Replied

10/15/2025 at 3:10 PM

Definitely would like to see this option for messages sent/received given that it's already present for bounces!

Jeffrey Werner Replied

10/20/2025 at 4:06 PM

Employee Post

We have discussed it and will be looking into adding webhooks for some of the other system level events other than just bounce received. The reason we initially decided against it originally is if you aren't careful with how you set them up, all the http requests could negatively affect your server. For that same reason, however, webhooks are likely to stay as system level only actions.

Jeffrey Werner Software Developer SmarterTools Inc. www.smartertools.com