Thank you for your help, that put me at ease.Hi,
I just got similar letter 10 mins ago. In it it says PCCs including from Canada to send original copies to "this office in one envelope."
The email IS legit. I have dealt with Singapore Immigration via this email a couple of times recently.
On the safe side, I intend to send the document request via this email too.
I got confused since I checked on the Canadian government website and got a similar email address for this visa office but without the word "immigration" in it. It could just be an address for general inquiries.
I will send the documents via email as well