I was testing the unsubscribe link feature from our contacts module in ZohoCRM and I sent my personal email a version of an email template with the default embedded unsubscribe link to see if it would utilize the "Email Opt Out" field to track un-subscription. Instead it unsubscribe my email address with no option to resubscribe. Now my testing email is blocked from any further testing of our Zoho CRM features or automations. 

How does one resubscribe their email after using unsubscribe link in Zoho CRM? There has to be a mechanism of resubscribe if a contact made a mistake and called us. Is there a link we can send them to re-opt in at their consent?

Thank you.