Sharing shreadsheets

Sharing shreadsheets

My wife and I each have zoho accounts. If She creates a spreadsheet and shares it with me using my email that is associated with my account, zoho shows a warning that I do not have a zoho account and the only way I can access this file is via the link that I get emailed.

1) Shouldn't this show up in the "shared with me" section?
2) why doesn't zoho recognize my email account?

FYI, these are both free accounts.