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DKIM Configuration and Key Monitoring

This section details MxToolbox's DKIM Configuration feature.

To begin, confirm the DKIM keys that are used for all of your outbound senders. Once a DKIM key has been confirmed, this service will validate it and continue to monitor it to inform you if/when one of your DKIM keys expires or is invalid, long before your recipients start complaining they are not receiving your emails.

Access this Delivery Center feature by clicking here.

configure_dkim

  1. Start by clicking the Configuration button to the right of one of your outbound senders.
  2. From here you will see a drop-down menu listing DKIM keys that MxToolbox has seen in outbound email from your domain. Please select a DKIM key and hit the Confirm button. If you do NOT see a DKIM key that you use from the list: Please click the checkbox beside Manually enter selector and input the DKIM selectors that are not present. MxToolbox will append those to the domain to create a DKIM key into the list. Not sure what a DKIM selector is? Please scroll down to read more...

Note: If a red error icon appears, the DKIM key for your domain is no longer valid and needs to be fixed. If you see a green OK icon, MxToolbox has confirmed that your DKIM key is currently valid.

  1. Repeat this process if you use more DKIM keys for that same sender and for all other senders.

I added all of my DKIM Keys... Now what?

Once you have added all of the DKIM keys:

  1. MxToolbox will monitor all of those DKIM keys for any potential error that could impact your email delivery from an invalid key.
  2. We will alert you on this page if one or more of the keys is broken/invalid and needs fixing.

In the event there is an issue, the status bar at the top will show a percentage being red with a red error icon next to the DKIM key that has an issue. If everything is all green, you are good to go!*

Overall Status

  • If any verified source listed on the page has a FAILING status, this overall status will be noted with FAILING

Statuses on Individual Verified Sources (e.g., Amazon SES, Office 365, Mailchimp, etc.)

  • OK (Green): DKIM Policy Rate is > 93% and no DKIM Keys for that source are failing
  • Warning (Yellow): DKIM Policy Rate has dropped below 93%, but above 80%. Some email could be impacted
  • FAILING (Red):
  1. DKIM Policy Rate is below 80%.
  2. One (1) or more DKIM Keys for that source are failing.
  3. Both DKIM Policy Rate and one (1) or more DKIM Keys are failing.

For more DKIM Selector and DKIM Key information, click here.