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Yandex Cloud Postbox
  • Getting started
    • All guides
    • Creating an address
    • Domain ownership check
    • Setting up a DMARC policy
    • Sending an email
    • Templating an email
    • Creating a configuration
    • Linking a configuration to an address
    • Writing logs
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  1. Step-by-step guides
  2. Creating an address

Creating an address

Written by
Yandex Cloud
Updated at February 24, 2026
  1. In the management console, select the folder you want to create an address in.

  2. Go to Cloud Postbox.

  3. Click Create address.

  4. In the Domain field, specify the domain you will use to send emails. You can use a domain of any level.

  5. (Optional) Link the configuration to an address.

  6. Set up outgoing email signatures (DKIM). Select:

    • Simple for Yandex Cloud Postbox to prepare keys and DNS records for you to add to your DNS provider. For more information, see DKIM signature.

    • Advanced to specify a selector and private key manually:

      1. Generate a key to create a DKIM signature. Yandex Cloud Postbox supports 1,024-bit and 2,048-bit keys. To generate a key, run the following OpenSSL command:

        openssl genrsa -out privatekey.pem 2048
        

        Note

        Some DNS providers impose length limitations on TXT records. If you encounter such an issue, use a 1024-bit key.

      2. In the Selector field, specify a selector, e.g., postbox. This selector should be used in one resource record only: the one you create when you pass the domain ownership check.

      3. In the Private key field, copy the contents of the privatekey.pem file.

  7. Optionally, configure logging.

  8. Optionally, under Restrictions, enable Restrict sender list and specify the addresses allowed to send emails.

  9. Click Create address.

To send emails, pass a domain ownership check.

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