I'm not aware of one. From: UA-EAI <ua-eai-bounces@icann.org> On Behalf Of Don Hollander Sent: Tuesday, February 5, 2019 7:51 PM To: ua-eai@icann.org Subject: [UA-EAI] Authoritative figures on mailboxes supported by various platforms Does anyone know of a credible report that shows how many email addresses are under management by a service or being supported by an application? https://techcrunch.com/2016/02/01/gmail-now-has-more-than-1b-monthly-active-users/<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftechcrunch.com%2F2016%2F02%2F01%2Fgmail-now-has-more-than-1b-monthly-active-users%2F&data=02%7C01%7Cmarksv%40microsoft.com%7Ccaeaf1ee4ee1487a87bb08d68be65f3b%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636850218889216848&sdata=XSaRlm%2BhhvYY2njyZWtD1EC0PFRqud1KG1xbEA1x6ac%3D&reserved=0> for example shows that Gmail has more than 1b (1.2 b I've seen elsewhere). Don Don Hollander Secretary General - UASG Skype: Don_Hollander