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SMTP

Send Auth0 email with SMTP

Configure Auth0 to send verification, password reset, and invite emails through 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 Auth0

  1. Open your Auth0 dashboard.
  2. Go to Branding, then Email Provider.
  3. Choose SMTP or Custom SMTP as the provider.
  4. Paste the Parcel Wing SMTP settings and send a test email.

Configure fields

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

Sender

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

Auth0 system emails are transactional, so use a stable sender like [email protected] or [email protected].

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.