Problem with .env environment variables (using Deno)

[lbois]

Describe the bug
I have a function that sends an email, using mailjet. API KEY and API SECRET are stored in a .env file located in supabase/functions/send-email folder.

I've installed supabase locally (npm install supabase) and tested as is in a simple TS file:

// test_deno.ts
import "https://deno.land/std@0.224.0/dotenv/load.ts";

console.log("MAILJET_API_KEY:", Deno.env.get("MAILJET_API_KEY"));
console.log("MAILJET_API_SECRET:", Deno.env.get("MAILJET_API_SECRET"));

The values are well displayed when executed.

My send-email/index.ts + .env are deployed to supabase.com as is
supabase functions deploy send-email --project-ref <project_id>

in index.ts I have a console.log as previously on the 2 environment variables values

When I execute the function remotely by a curl command I got an error mailjet but the log of the Edge fiunction send-email on supabase.com shows me that the 2 environment variables are 'undefined'.

url -X POST 'https://<project_id>.supabase.co/functions/v1/send-email'
-H "Content-Type: application/json"
-H "Authorization: Bearer "
-d '{
"to": ["a_user@an_email.com"],
"subject": "Test depuis Supabase Edge Function",
"message": "Ceci est un test via Supabase",
"collectionName": "Ma Collection",
"fileCount": 1
}'

Thanks for your help

Laurent
System information
Rerun the failing command with --create-ticket flag.

• Ticket ID: [e.g. ab1ac733e31e4f928a4d7c8402543712]
• Version of OS: MacOS Sequoia 15.4.1
• Version of CLI: supbase v2.22.6 (locally)

Additional context
If applicable, add any other context about the problem here.

• Browser Chrome
• Version of Node.js [v22.15]