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Setup SMTP

In order to send emails from your Hudu, you will need to provide a SMTP server.

Example credentials for different providers.

Amazon SES

  SMTP_DOMAIN=mydomain.com
  SMTP_ADDRESS=email-smtp.region-1.amazonaws.com
  SMTP_PORT=587
  SMTP_STARTTLS_AUTO=true
  SMTP_USERNAME=IAMMailerKey
  SMTP_PASSWORD=IAMmailerSecret
  SMTP_AUTHENTICATION=login
  SMTP_OPENSSL_VERIFY_MODE=
  SMTP_FROM_ADDRESS=

SMTP2GO

SMTP_DOMAIN=example.com
SMTP_ADDRESS=mail.smtp2go.com
SMTP_PORT=2525
SMTP_STARTTLS_AUTO=true
SMTP_USERNAME=example.com
SMTP_PASSWORD=testpass
SMTP_AUTHENTICATION=login
SMTP_OPENSSL_VERIFY_MODE=none

Office 365

  SMTP_DOMAIN=mydomain.com
  SMTP_ADDRESS=smtp.office365.com
  SMTP_PORT=587
  SMTP_STARTTLS_AUTO=true
  SMTP_USERNAME=username@yourdomain.com
  SMTP_PASSWORD=password
  SMTP_AUTHENTICATION=login
  SMTP_OPENSSL_VERIFY_MODE=none
  SMTP_FROM_ADDRESS=username@yourdomain.com

Gmail.

Be aware that Gmail has strict sending limits. For growing organizations, please look into using a transactional email service like Amazon SES or Mailgun.
  SMTP_DOMAIN=smtp.gmail.com
  SMTP_ADDRESS=smtp.gmail.com
  SMTP_PORT=587
  SMTP_STARTTLS_AUTO=true
  SMTP_USERNAME=username@gmail.com
  SMTP_PASSWORD=password
  SMTP_AUTHENTICATION=login
  SMTP_OPENSSL_VERIFY_MODE=none
  SMTP_FROM_ADDRESS=username@gmail.com
With Gmail, try turning on 2-step validation and using an application password. Alternatively, enable less secure apps to access the account.