Domain Configuration in Zoho Calendar

Domain configuration in Zoho Calendar is essential to ensure that event invitation notifications reach users' inboxes successfully and appear authentic.

For instructions on how to Verify your domain, please refer to the help document for more information.

DKIM configuration

DKIM is an authentication method that uses email encryption with public/private keys to validate whether the emails are generated from the authorized servers recognized and configured by the administrators of the sending domains. This authentication method ensures that meeting invitations and reminders appear legitimate and improves deliverability.

How DKIM Works

The DKIM process involves publishing a public key as a TXT record in the domain's DNS Manager (which can be the registrar or DNS provider). Each outgoing email, such as event invitations or reminders from Zoho Calendar, contains a unique signature generated with the domain's private key. The recipient's email server uses this private-public key pair to verify the email's source. If validation fails, the recipient server may either reject the email or mark it as spam or forged, depending on its configuration.

By enabling and utilizing DKIM for your domain, you ensure that legitimate emails sent through Zoho Calendar are not mistakenly classified as spam by recipients.

Steps to configure DKIM Signature for your Domain:

You can configure DKIM for your domain from Zoho Calendar's Admin Console, after creating the required text record in your domain's DNS manager. The DKIM configuration has three major steps:

• Generate unique public DKIM Key-value using a default selector in Zoho Calendar.
• Create a TXT record in your Domain's DNS Manager (Domain registrar/ DNS Provider).
• Validate the selector and Enable DKIM in Zoho Calendar.

I.Generate Unique Domain Key 

1. Log in to the Zoho calendar as Administrator or Super Administrator.
2. Go to Domains from the left menu, and choose the domain for which you want to configure DKIM. 
3. DKIM configuration page appears. Click on the Add button to add a new selector for the domain.  
4. Provide the selector name, for the domain to be used with Zoho Calandar. Ex: zoho
5. Select the preferred key length for your selector and Click Add. 

The selector will be added and a TXT record will be generated and displayed across the added selector. You can copy the text in the TXT value field.  You need to create a TXT record with this value in the DNS Manager before you click Verify.

II. Creating TXT Record in DNS Manager

1. Login to the domain's DNS Manager where your domain's name server is pointed.
2. Create a TXT record in your DNS with the title as <selector>._domainkey.<yourdomainname.com>
   Ex: zoho._domainkey.zylker.org should be the name of the TXT record if the selector you choose is zoho and the domain name is zylker.org. Replace the text with your custom values without the brackets. 
3. If your DNS is hosted with GoDaddy/ WIX/ Squarespace/ Namecheap etc, provide the TXT record name as zoho._domainkey (These providers append the domain name automatically)
4. In the TXT record value, paste the entire content you copied from the text field TXT Record Value in Zoho.
5. Save the TXT record in the DNS Manager.
6. You can check the validity of the DKIM using this DKIM checker.

III. Verify DKIM for the domain

1. If the Validation of the DKIM is successful on the third-party site, log in to Zoho Calendar Admin Console.
2. Click Verify Now across the particular selector. The text record will be modified to the verified state.
3. Once verified, the DKIM signatures will be added to all the emails generated from the domain. 

Delete Domains

When a domain associated with your account is no longer needed, you can remove it by following these steps:

1. Log in to Zoho Calendar as Administrator or Super Administrator.
2. Navigate to the Domains section in the left pane. The domains that are associated with your account can be found here.
3. Click the Delete icon that appears when you hover over the domain you want to delete.
4. In the confirmation popup, click Delete to proceed.
5. Verify your identity by entering your account password to confirm your action.