IBM AH0QXML User Guide - Page 49
SMTP Inbound Controls and navigate down to Inbound Intended, Recipient Controls.
![]() |
View all IBM AH0QXML manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 49 highlights
4. Click the tabs in the following order: Router/SMTP → Restrictions and Controls → SMTP Inbound Controls and navigate down to Inbound Intended Recipient Controls. 5. Double-click the document or click the Edit Server Configuration button to put the document in edit mode. Figure 4-2 Inbound Intended Recipients controls 6. Make the desired changes to the Inbound Intended Recipients Controls fields and click Save & Close. The fields have the following meanings: - "Verify that local domain recipients exist in the Domino Directory." The default is disabled. When enabled: If the domain part of an address specified in an SMTP RCPT TO command matches one of the configured local Internet domains, the SMTP listener checks all configured directories to determine whether the specified recipient is a valid user. If all lookups complete successfully and no matching username is found, the SMTP server returns a 550 permanent failure response indicating that the user is unknown. Enabling this option has benefits in the areas of bandwidth, storage, and performance, as the body of the rejected message is never delivered. Enabling this option can help prevent messages sent to nonexistent users (for example, spam messages and messages intended for users who have left the organization) from accumulating in MAIL.BOX as dead mail. Attention: If you choose to enable this option, you need to be aware that a spammer could obtain valid e-mail addresses for users on your Domino Server. This is due in part to the verification that takes place during the initial SMTP conversation. Attempting to guess valid e-mail addresses (of common names), a spammer has the potential to harvest addresses of your users. Chapter 4. Domino 6 Server anti-spam features 37
![](/manual_guide/products/ibm-ah0qxml-user-guide-c7a8df4/49.png)