https://bugs.winehq.org/show_bug.cgi?id=28661
--- Comment #7 from Austin English austinenglish@gmail.com --- (In reply to Rosanne DiMesio from comment #6)
Function get_notify_email_address_list in user.php has the following comment:
// If both appId and versionId are null we are especially // requesting to email admins, so the mail should be sent // regardless of global emails setting
That's the only thing I can find that might be related, though I don't see how it's being triggered, as the random emails I see are linked to valid applications and versions, so the ids shouldn't be null.
Maybe trace tha ids in a log somewhere (and/or in the email) to verify?