How To Fix SK511 - Incoming message undeliverable; redirected to &1 using mail

SAP Error Message - Details

• Message type: E = Error

• Message class: SK - SAPcomm messages

• Message number: 511

• Message text: Incoming message undeliverable; redirected to &1 using mail

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SK511 - Incoming message undeliverable; redirected to &1 using mail ?

  The SAP error message SK511 indicates that an incoming message could not be delivered to the intended recipient and has been redirected to a specified alternative address (denoted by &1). This typically occurs in the context of SAP's communication and messaging system, particularly when dealing with email notifications or messages sent through the SAP system.
  Cause:
  
  Invalid Recipient Address: The primary cause of this error is that the original recipient's email address is invalid or not recognized by the system.
  Recipient Not Found: The intended recipient may not exist in the SAP system or may have been deleted.
  Mail Server Issues: There could be issues with the mail server configuration, such as it being down or misconfigured.
  User Settings: The user profile settings may not be correctly configured to receive messages.
  Mail Routing Issues: There may be issues with how the mail is routed within the organization’s email infrastructure.
  
  Solution:
  
  Check Recipient Address: Verify that the email address of the intended recipient is correct and exists in the SAP system.
  User Existence: Ensure that the user profile for the intended recipient is active and correctly set up in the SAP system.
  Mail Configuration: Review the mail configuration settings in SAP (transaction code SCOT) to ensure that the SMTP settings are correct and that the mail server is operational.
  Check Mail Logs: Look into the mail logs for any additional error messages or details that could provide insight into why the message was undeliverable.
  Redirected Address: Check the alternative address (&1) to ensure that it is valid and that the recipient is able to receive messages sent to that address.
  Contact IT Support: If the issue persists, it may be necessary to contact your IT support team to investigate any underlying issues with the mail server or network.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SCOT (for configuring SMTP) and SU01 (for user management).
  SAP Notes: Check SAP Notes for any known issues or patches related to email delivery problems.
  Documentation: Review SAP documentation regarding email configuration and troubleshooting for more detailed guidance.
  User Profiles: Ensure that user profiles are correctly set up to receive emails, including checking the communication method settings.
  
  By following these steps, you should be able to diagnose and resolve the SK511 error in your SAP system.