[GauntletWizard]

Google emails my address and recovery address when my takeout downloads are ready. I have bimonthly takeouts scheduled. I'm guessing that it is a spam attempt, or possibly just some idiot who set a misspelling as his backup account.

[donalhunt]

I agree that this is the most likely scenario. The rationale is to ensure awareness of an action that has risk of data exfiltration.

Though at this point, it's probably too late. :/