Parcel Wing

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SMTP

Send Supabase Auth email with SMTP

Configure Supabase Auth confirmation, magic link, invite, and reset emails to use Parcel Wing SMTP.

Prefer the API? Start with an SDK

SMTP settings

Copy the exact values from your in-app Settings page. Most accounts use these defaults.

SettingValue
Hostsmtp.parcelwing.com
Port587
SecuritySTARTTLS
Usernameparcelwing
PasswordAny active Parcel Wing API key

Configure Supabase

  1. Open your Supabase project dashboard.
  2. Go to Authentication, then email or SMTP settings.
  3. Enable custom SMTP.
  4. Paste the Parcel Wing host, port, username, password, and sender details.
  5. Save and send a test confirmation email.

Configure fields

SettingValue
Hostsmtp.parcelwing.com
Port587
SecuritySTARTTLS
Usernameparcelwing
PasswordAny active Parcel Wing API key

Sender

Set Sender email to a verified Parcel Wing sender such as Acme <[email protected]>.

For local development, keep Supabase pointing at Parcel Wing only when you want real emails to leave your app.

Use a verified sender

Your from address should belong to a sending domain that is verified in Parcel Wing. This keeps SPF, DKIM, and DMARC aligned for better deliverability.

Troubleshooting

  • Use port 587 with STARTTLS, not implicit TLS on port 465.
  • Use parcelwing as the username and an active Parcel Wing API key as the password.
  • Make sure the sender address uses a verified sending domain.
  • If a vendor has a test email button, send a test before enabling production email.