Email Authentication (DKIM Configuration)

DKIM (DomainKeys Identified Mail) authenticates email you send from Slate. It lets email servers know that an email really is from you and not from a spammer. This improves deliverability and makes it less likely that your email will be caught in spam filters. It also removes the “Sent via” label in Gmail and other email clients.

DKIM requires your IT group to add a small entry to the DNS record for your domain. A DNS record matches hostnames (a friendly name like “”) to the actual IP address of a server on the internet (e.g.,

We have a DKIM tool to help you set this up. It involves creating a DKIM configuration and sharing that configuration with your IT group. Once they have updated the DNS records, click on a “validate” link for DKIM to take effect.

Set Up DKIM for Outgoing Slate Emails

  1. Select Database on the top navigation bar
  2. Select DKIM Configuration.
  3. Enter your email domain and click Lookup.
  4. If this is the first time you have set up DKIM, you will see a status of “Inactive / Awaiting Configuration.” Click on Create Configuration.

    The email domain is the part after the “@” in the email address you use for emails sent from Slate. It defaults to your school’s domain name, e.g., “” 
  5. A small window will pop up. You can choose a subdomain here. It defaults to slate-mx. In most cases, you will not need to change this.
  6. Click Save.


You will need to share these details with your IT group, specifically those responsible for DNS records. They will need to update your school’s DNS records with these values.

  • Once your IT group has added these records, return to your DKIM page and click on the “Validate Configuration” link.
  • Once the configuration has been validated successfully, you are all set. DKIM will start being used with any emails you send from Slate. 
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