You have to send the passport as per the instructions in the email. What does the email say?
It was on my portal not a direct email. It was addressed to me. But it said
"This is reference to your application for permanent residence. To finalize your application, we require:
1) Passports (then details about it)
2) Photographs (then details about it)
3) Change in circumstances (details about it)
4) Submitting your passport(s) in Canada (CPC-O) (details about it)"
I made a call to 1-800 number, talked to the agent. She was very confused as well. She said that they are not sending passport request to inland applicant. So I shouldn't send my passport to Ottawa. She said that she is making an inquiry about my passport or how this should be resolved.
And advised me to send my spouse's (dependent outland applicant) passport as per instructions on the letter and asked to attach a letter of explanation along with it saying that "She is a dependent outland applicant and primary applicant is inland that is why she is only submitting her passport"