At Zoho Campaigns, we strongly urge you to authenticate your domain by implementing SPF and DKIM.
Sender Policy Framework is an authentication technique that helps receiving email servers identify legitimate email senders and prevent spam entering the inbox of email recipients.
Click here to learn more about SPF.
DomainKeys Identified Mail (DKIM) is an email authentication mechanism that uses the "Public key cryptography" technique to ensure that the email message was not modified during transit.
Click here to learn more about DKIM.
To successfully authenticate your sender domain, you need to set up your SPF and DKIM TXT records. Authenticating your sender domain is a simple process that involves four easy steps.
  1. Add your sender domain.
  2. Copy the SPF and DKIM TXT records from your Zoho Campaigns account.
  3. Add the SPF and DKIM TXT records to the DNS server.
  4. Verify your domain in your Zoho Campaigns account after adding the SPF and DKIM TXT records to the DNS server.
Let's dive deep and learn more setting up SPF and DKIM TXT records

Add your sender domain

  1. Log in to your Zoho Campaigns account.
  2. From the Navigation Toolbar, choose Settings.
  3. Select Manage Senders under Deliverability. 

      4. Click the Add Sender button on the top-right corner of the screen.
      5. You can enter up to 5 sender email addresses if you want.
      6. Click the Send Verification Email button to receive verification emails at the email address you have provided.

      7. To verify your email addresses, log in to your email client and open the verification email sent by Zoho Campaigns.
      8. Click the Verify your email address button in the email to complete the verification process.
      9. Once verified, you will find your sender address (Example: patricia.b@zylker.com) listed under the Sender Address tab and the domain (zylker.com) listed under the Domain Authentication tab.

Copy SPF and DKIM record values from Zoho Campaigns

Only the organization's admin has the privilege to access domain authentication settings. You can contact your organization's admin and ask them to help you authenticate your sender domain.
  1. From the Navigation Toolbar, choose Settings.
  2. Select Domain Authentication under Deliverability.

      3. Click Setup on the extreme right of the row.
      4. On the Setup page, click the Copy button next to the text records.

Pasting the SPF and DKIM records in Squarespace

To add the SPF TXT record for your domain, follow these steps:
  1. Log in to your Squarespace account.
  2. Open Advanced DNS Settings for the domain.
  3. Scroll down to Custom Records.
  4. In the Record field of a blank row, select TXT from the drop-down.
  5. Enter "@" in the Host field.
  6. Leave the Priority field blank.Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
  7. Click Add to save the SPF record.
Example: v=spf1 include:zcsend.net include:sender.zohobooks.com ~all

Note: A sender domain can have only one SPF TXT record. We recommend not to add a new record if you already have one. If you have an existing SPF TXT record,
  1. Locate the record you added.
  2. To the existing record details, add "include:zcsend.net" after "v=spf1". (Example: v=spf1 include:zcsend.net include:spf.zylker.com ~all)
  3. Click ADD and then click Save to confirm.
If you are using Zoho Campaigns from the regions below, add the respective TXT value instead of include:zcsend.net.
  1. EU region - include:eu.zcsend.net
  2. India - include:zcsend.in
  3. China - include:zcsend.net.cn
To add the DKIM record for your domain, follow these steps:
  1. Log in to your Squarespace account.
  2. Open Advanced DNS Settings for the domain.
  3. Scroll down to Custom Records.
  4. In the Record field of a blank row, select TXT from the drop-down.
  5. In the Host field, enter the DKIM host name displayed in the SPF/DKIM Setup screen.  (Example: 2232._domainkey)
  6. Leave the Priority field blank.
  7. Copy the DKIM TXT record displayed in the SPF/DKIM Setup screen in your Zoho Campaigns account. Paste it in the Data field.
  8. Click Add to save the DKIM record.

  1. If your DNS has already mentioned the domain name, enter the domain key alone in the Host Name field.
  2. If your sub domain is mail.zylker.com, the domain key should be "2232._domainkey.mail"
Click here to learn more about managing your DNS record resource in your Squarespace account.

Verify the sender domain

After the SPF and DKIM records for your domain have been added to the DNS servers, follow these steps to verify your domain:
  1. From the Navigation Toolbar, choose Settings and select Domain Authentication.
  2. Click the Setup button on the far-right corner of your domain.
  3. Click Verify Domain.
If the records are not published in the DNS, you can check the reason and how to fix it on the same screen.

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