# Add a second factor for a securely sent message (via DLP Gateway)

To send a secure message, a recipient verification must be configured. Two ways exist to do this:

1. [Create a contact in advance](https://docs.zivver.com/en/user/dlp/apply-second-factor.html#vooraf-een-contact-aanmaken)
2. [Via a notification email](https://docs.zivver.com/en/user/dlp/apply-second-factor.html#via-een-notificatie-e-mail)

## Create a contact in advance

Follow the steps below to create a contact in advance.

01. Open the Zivver [WebApp](https://app.zivver.com/).
02. Log in with your Zivver account.
03. Open **Personal contacts**.
04. Click _person_add_ **Add contact**.
05. Enter the email address of the contact.
06. Click OK.
07. Click _search_ **Search**.
08. Search for the contact you just created.
09. Click the contact.
10. Choose which verification method you want to use:
    1. Enter the mobile phone number if you want to use SMS verification.
    2. Enter an access code if you want to use an access code.

Info

If both the mobile number and the access code are entered, the mobile number will be used by default.

## Via a notification email

If no contact with a configured recipient verification exists for the recipient yet, you will receive a notification email from Zivver prompting you to provide the recipient verification.

Updated on 2026-06-04