Description

Beginning in March 2016, all customers who use the Sitecore Email Delivery application from the App Center may experience issues affecting their ability to perform normal mail dispatch operations.

Users may experience:

• Inability to add or remove sender domain using the App Center UI as described in the documentation.
• Inaccurate list of sender domains shown in the App Center UI.
• After specifying a new "From email" address for an ECM/EXM dispatch, e-mails are not delivered to the final recipients.

Solution

Sitecore has fixed the issues above and released a production update on April 8th, 2016. Since this time, all affected Email Delivery functions are working in normal mode.

Note: when working with Email Experience Manager and Sitecore Email Delivery application, always refer to Sitecore documentation ("Dispatching through the Sitecore MTA") for proper configuration.

Post-Steps For EXM 3.3

There is an updated management UI for sender domains in EXM 3.3. Therefore, EXM 3.3 users will need to apply additional post-steps in case wrong sender domains are spotted in the UI:

1. Log in to App Center with valid credentials, ensure Email Delivery app is active.
2. Run the following SQL query on the master database of your Sitecore XP instance:
   

   delete from dbo.SenderDomains

3. Restart your Sitecore XP instance.
4. Open EXM UI and check that valid sender domains are initialized.