1. DKIM/SPF settings: You'll have to add the cNAME records for DKIM/SPF configuration in the new DNS panel.
2. Email Link Domain Settings: Please add a cNAME record for email link domain as mentioned in your LeadSquared account.
3. Landing page hosting: If you have created any cNAME records for your sub-domain, then those will also have to be added again.