amoghrajesh commented on PR #57354:
URL: https://github.com/apache/airflow/pull/57354#issuecomment-3456454692
@ashb @eladkal good call above thanks.
I tested with subject template as well as html body template and these are
the results:
Subject template:
```shell script
Custom Subject: {{ti.task_id}} failed in DAG {{ti.dag_id}}
```
Content template:
```shell script
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Custom Email Template</title>
</head>
<body>
<h2>Task Failure Notification</h2>
<p><strong>Task:</strong> {{ti.task_id}}</p>
<p><strong>DAG:</strong> {{ti.dag_id}}</p>
<p><strong>Run ID:</strong> {{ti.run_id}}</p>
<p><strong>Try Number:</strong> {{try_number}} of {{max_tries + 1}}</p>
<p><strong>Host:</strong> {{ti.hostname}}</p>
<h3>Exception Details:</h3>
<pre>{{exception_html}}</pre>
<p>
<a href="{{ti.log_url}}">View Logs</a> |
<a href="{{ti.mark_success_url}}">Mark Success</a>
</p>
</body>
</html>
```
Defined these env vars:
```shell script
export AIRFLOW__EMAIL__SUBJECT_TEMPLATE=/files/custom_email_subject.jinja2
export AIRFLOW__EMAIL__HTML_CONTENT_TEMPLATE=/files/custom_email_body.html
```
This is how it renders:
<img width="1724" height="883" alt="image"
src="https://github.com/user-attachments/assets/02c47123-975f-4fd2-a839-1bfe5b40d9c9";
/>
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