Power Apps → Trigger Power Automate → Send email

But this approach is usually slower, more expensive, harder to maintain , and often completely unnecessary.

❌ Why you should stop using Power Automate for in-app emails

1️⃣ It burns your Power Automate quota

Every email = Flow run.
Flow runs cost capacity and can throttle at scale.

If your app sends hundreds or thousands of emails, you’re paying for something you don’t need.

2️⃣ You add latency for no reason

Power Apps → Flow calls are asynchronous , take multiple seconds, and sometimes fail silently.

Direct connectors inside Power Apps are instant.

3️⃣ More moving parts = more failures

With a Flow you now have:

The maintenance burden is unnecessary.

4️⃣ Most email scenarios are 100% doable directly inside Power Apps

Microsoft has added new first-party connectors and Graph integration , removing the need for a Flow middleman.

✅ What you should do instead

Option A — Use the “Office365Outlook” connector directly in Power Apps

Perfect for simple emails.

Office365Outlook.SendEmail(
    "[email protected]",
    "Subject goes here",
    "Body goes here"
)

Benefits:
✔ Zero flow runs
✔ Instant
✔ Very stable

Option B — Use Outlook “SendEmailV2” (Modern Connector)

If your environment is using the new connector-privileged model.

fully functional email sender built directly into your app.

1️⃣ 𝗔𝗱𝗱 𝘁𝗵𝗲 𝗖𝗼𝗻𝗻𝗲𝗰𝘁𝗼𝗿: First, add the 'Office365 Outlook' connector to your app.

2

2️⃣ 𝗗𝗲𝘀𝗶𝗴𝗻 𝗙𝗼𝗿𝗺: Create a custom form using:

1

3️⃣ 𝗧𝗵𝗲 𝗦𝗲𝗻𝗱 𝗕𝘂𝘁𝘁𝗼𝗻: Add a button and paste this expression into its 𝗢𝗻𝗦𝗲𝗹𝗲𝗰𝘁 property: 

  
 Office365Outlook.SendEmailV2( 
    TxtSendTo.Text, 
    TxtSubject.Text, 
    RichTextEditor.HtmlText, 
    { 
        IsHtml: true, 
        Attachments: ForAll( 
            EmailAttachment.Attachments, 
            { 
                Name: ThisRecord.Name, 
                ContentBytes: ThisRecord.Value, 
                '@odata.type': "" 
            } 
        ) 
    } 
); 
Notify("Email Sent Successfully",NotificationType.Success)

Option C — Use Microsoft Graph (for advanced scenarios)

For apps that need:

You can call Graph using a Custom Connector or a Graph Federated API (no Flow needed).

🧠 When to choose what

ScenarioBest Method
Simple “notify user” emailOffice365Outlook connector
Email with dynamic attachmentsGraph API
Shared mailbox emailGraph API or modern Outlook connector
Complex workflowsPower Automate
Bulk email (thousands)Graph API with App Registration