Can I contact McDonald’s® to change the email address for my account? June 16, 2022 04:14 Updated For security reasons, McDonald’s cannot access your email account. Please register with your new email account to start ordering. Related articles Can I change the email address associated with my McDelivery account? Can I reset/deactivate my account? I’ve forgotten/cannot log in with my email address registered previously on McDelivery.com.sg. What must I do? Where can I change my account info? Why can’t I track my McDelivery order when using Guest Login?