Throughwave definitely provides EAI addresses.  They don’t have a client and they are working on IMAP & POP support. Though only the two you list have a complete suite of services as far as I know.   No one was there from OpenFind. D From: deepak <deepak.singhal@dil.in> Date: Saturday, 15 April 2017 at 4:19 PM To: Don Hollander <don.hollander@icann.org>, "`ua-eai@icann.org`" <ua-eai@icann.org> Subject: [Ext] Re : [UA-EAI] EAI Readiness Spreadsheet Hi, Thanks Don to share this information. According this sheet only 2 mail server is fully compatible to EAI. 1. XgenPlus 2. Coremail Deepak Singhal From: Don Hollander <don.hollander@icann.org> MailId : [68159261] To: "ua-eai@icann.org" <ua-eai@icann.org> Subject: [UA-EAI] EAI Readiness Spreadsheet Date: 14 Apr 2017 09:42:20 PM The following is a link to shared spreadsheet that records the assessment of EAI Readiness from our discussion in Seattle this week