Hi Don, try eai.xgenplus.com for email validation . I think this is good tool.RegardsDeepak singhal From: Don Hollander MailId : [70190940]To: tan tanakadennis via ua-discuss Subject: [UA-discuss] Email Address Validation service providers?Date: 17 Jun 2017 01:05:01 AM After a review of more than 1,000 websites for acceptance (or not) of email addresses in a variety of forms, the following conclusion is produced: "We have also noticed that most of the websites are giving error message in the same style. That is to say there are only a few commonly used filtering providers. If these providers can be reached out, than their clients (websites) will automatically become UA ready.&rdquo For those who do development, are there email validation routines or utilities that are commonly used? If so, where do you go to find them.? Don PS: The work done by ICANN&rsquos Global Support Team, based on work that Donuts started several years ago, will be published before the end of this month. Just putting some prose around the analysis and doing some additional reviews. Don Hollander Universal Acceptance Steering Group Skype: don_hollander Do not Remove:[HID]20170617010459293[-HID] [XGENFOOTER] [-XGENFOOTER]