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Auth0

Use Deckle as the SMTP provider for Auth0 tenant emails.

Configure Auth0's custom email provider to send through Deckle's SMTP relay for verification, password-reset, and MFA emails.

Set it up#

  1. Generate a Deckle SMTP key below and copy it.
  2. In Auth0 → Branding → Email Provider, select SMTP.
  3. Enter the host, port, username, and the key as the password.
  4. Verify your sender domain under Domains so mail passes SPF and DKIM.

SMTP settings#

SettingValue
Hostsmtp.getdeckle.com
Port587
Usernameapikey
PasswordYour Deckle secret key

Verify your domain

Add and verify your sender domain under Domains so mail passes SPF and DKIM.
SMTP settings
Host: smtp.getdeckle.com
Port: 587
Username: apikey
Password: <your Deckle secret key>