Passbolt smtp configuration

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Passbolt CE – SMTP Configuration

Setup Your Own SMTP Relay Server

If you don't already have an SMTP relay, follow this guide to set one up:

How to set up Postfix SMTP relay with authentication on CentOS 8.x

For Passbolt v3.8.0 and Later (Web UI Configuration)

Log in as Administrator

• Access your Passbolt instance using an admin account.

Navigate to Email Server Settings

• Go to Administration → Email server.

Select Email Provider

• Choose your email provider from the list.
• If it's not listed, select Other.

Configure Authentication

Select the appropriate authentication method:

• Username & Password – Most common
• Username only – If your relay doesn’t require a password
• None – If your SMTP relay doesn’t require authentication

Fill in SMTP Details

• SMTP Host: Enter the hostname or IP of your SMTP relay.
• Port: Typically:
  • 587 for TLS
  • 465 for SSL
  • 25 for plain SMTP (check your relay’s requirements)
• Username: Your SMTP relay username (if required).
• Password: Your SMTP relay password (if required).
• Use TLS: Enable this if your relay supports it (recommended).
• SMTP Client: (Optional) Set to your server’s IP address if required by your relay.
• Sender Name/Email: Set the default sender name and email address.

Test Configuration

• Use the Send Test Email feature to verify the settings.
• If the test passes, proceed to save the configuration.

Save Settings

• Click Save.
• You should see:

Success: The SMTP settings have been saved successfully.

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