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Status Future consideration
Workspace IBM i
Categories Networking
Created by Guest
Created on May 17, 2021

Provide DKIM signing to the SMTP server/client on IBM i

DomainKeys Identified Mail, or DKIM, is an authentication protocol that links a domain name to a message.
The protocol allows you to sign your email with your domain name. The purpose of the DKIM protocol is not
only to prove that the domain name has not been falsely used by others, but also that the signed message has not been altered during transmission.
DomainKeys Identified Mail has become a global standard in email security and is, together with its sister SPF, an absolutely necessary tool for anyone serious about mailing, especially anyone sending emails to public providers like gmail.
It should be added to the IBM i SMTP server but also on the client to validate the emails.When a receiving SMTP mail server detects a signature header, it looks up the public part of the key by asking the domain name system (DNS) for the TXT record. One of the beauties of public key cryptography is that the keys are like brothers: they share DNA. Using the public key, anyone can tell whether the email was sent by the owner of the domain or not. If this validation check fails or if the message header – and therefore the digital signature – does not exist, many different email service providers (including major ones like Gmail and Outlook) raise an alarm and may, depending on the volume of email sent, decide to mark this email as spam or even to block the sender IP address.


Use Case:

The main reason you should use DKIM verification is pretty simple: along with SPF and DMARC, these are the main email authentication methods for verifying the identity of senders.


Idea priority High
  • Guest
    Jul 12, 2021

    The CEAC has reviewed this requirement and recommends that IBM view this as a HIGH priority requirement that is important to address.
    DKIM is seen as a vital part of sending email in the modern world, without this support many emails will be rejected and or flagged as spam.

    Background: The COMMON Europe Advisory Council (CEAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CEAC has a crucial role in working with IBM i development to help assess the value and impact of individual RFEs on the broader IBM i community and has therefore reviewed your RFE.

    To find out how CEAC help to shape the future of IBM i, see CEAC @ ibm.biz/BdYSYj and the article "The Five Hottest IBM i RFEs Of The Quarter" at ibm.biz/BdYSZT

    Therese Eaton – CEAC Program Manager, IBM

  • Guest
    Jul 12, 2021

    IBM will use this request as input to planning but no commitment is made or implied. This request will be updated in the future if IBM implements it. IBM will use votes and comments from others in the community to help prioritize this request.

  • Guest
    Jun 8, 2021

    The CAAC has reviewed this requirement and recommends that IBM view this as a high priority requirement that is important to be addressed. Since DKIM has become a widely accepted standard, it should be supported by IBM i.

    Background: The COMMON Americas Advisory Council (CAAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CAAC has a key role in working with IBM i development to help assess the value and impact of individual RFEs on the broader IBM i community, and has therefore reviewed your RFE.

    For more information about CAAC, see www.common.org/caac

    Nancy Uthke-Schmucki - CAAC Program Manager