Yandex Cloud Postbox release notes

June 2026June 2026

UpdatesUpdates

• Supported bulk emails via the AWS-compatible HTTP API. The SendBulkEmail method now allows you to send multiple templated emails in a single request, with a common template and individual substitution data, recipients, headers, and labels for each email.

• Added support for attachments in emails sent via the AWS-compatible HTTP API. Files are provided in the Attachments parameter:

  • In the SendEmail method, via the Simple or Template content type.
  • In the SendBulkEmail method, via the shared DefaultContent.Template content.

  Both regular attachments and inline attachments (e.g., images in HTML) are supported. Read more on attachment limitations.

April 2026April 2026

UpdatesUpdates

• Added support for the full-cycle processing of email complaints: accepting complaints from internet service providers, parsing these complaints, identifying the sender, and sending a complaint notification to the user. Added a dedicated complaints metric to the statistics on sent emails in the management console.
• Added support for viewing information about sent emails in the management console.

February 2026February 2026

UpdatesUpdates

• Added support for the simple method of setting up a DKIM signature (Easy DKIM).

October 2025October 2025

UpdatesUpdates

• Added support for the sender list limit: now, when creating an address, you can also add the list of mailboxes allowed to send to it.

September 2025September 2025

UpdatesUpdates

• Added graph statistics to track email deliveries, opens, link clicks, and unsubscribes.

August 2025August 2025

UpdatesUpdates

• Added support for click tracking in emails.

July 2025July 2025

UpdatesUpdates

• Supported authentication with an IAM token.
• Supported notifications about the following events:
  • Email opened
  • Email delivery delayed
  • Recipient unsubscribed
• Supported email delivery over a secure connection.

May 2025May 2025

UpdatesUpdates

• Added support for Terraform: you can now create addresses and check custom domain ownership using Terraform. Read more in this article.

March 2025March 2025

UpdatesUpdates

• Added support for SMTPS: users whose email client does not support STARTTLS can now send emails using Yandex Cloud Postbox.
• Added support for email templating.

January 2025January 2025

UpdatesUpdates

• Added support for sending notifications about email delivery to a Yandex Data Streams data stream.
• Added support for API key authentication when sending emails from the email client over SMTP.

August 2024August 2024

UpdatesUpdates

• Added support for logging to the execution log.