MDVA-44188: Emails are not sent to IDs containing “.-”

The MDVA-44188 patch fixes the issue where emails are not sent to the email IDs containing .-. This patch is available when the Quality Patches Tool (QPT) 1.1.13 is installed. The patch ID is MDVA-44188. Please note that the issue is scheduled to be fixed in Adobe Commerce 2.4.5.

Affected products and versions

The patch is created for Adobe Commerce version:

  • Adobe Commerce (all deployment methods) 2.4.3-p1

Compatible with Adobe Commerce versions:

  • Adobe Commerce (all deployment methods) 2.4.3 - 2.4.4
The patch might become applicable to other versions with new Quality Patches Tool releases. To check if the patch is compatible with your Adobe Commerce version, update the magento/quality-patches package to the latest version and check the compatibility on the Quality Patches Tool: Search for patches page. Use the patch ID as a search keyword to locate the patch.


Unable to send emails to email IDs that contain .- in their user name.

Steps to reproduce:

  1. Register a customer with an email address containing .-. For example,
  2. Place an order.

Expected results:

User with the email ID containing .- receives emails as usual.

Actual results:

Email is not sent to the email ID containing .-. The following error is shown in error logs: Could not add an invalid email address to the mailing queue.

Apply the patch

To apply individual patches, use the following links depending on your deployment method:

To learn more about Quality Patches Tool, refer to:

For info about other patches available in QPT, refer to Patches available in QPT in our developer documentation.