Recently the webpage is updated to send them email on it but members are yet to request ircc to see what happens. So dont know what would their response yet. Why are you asking? Are you outisde of canada and expecting oath anytime soon?
If you are outside when you receive oath invite then email them.
https://www.canada.ca/en/immigration-refugees-citizenship/services/coronavirus-covid19/citizenship.html#oath
You need to be in Canada to take the Oath of Citizenship. If you get your invitation while you’re outside Canada, reply to the invitation email to explain your situation in detail.
In your email
- put “Outside Canada – Oath of Citizenship” in the subject line
- In the body of your message, include
- your full name
- your application number
- a detailed explanation of your situation
We’ll contact you with your next steps after we receive your email.