UltimateEmail is a set of Email Validator and Mail Merge controls for ASP.NET. Validate email addresses in 4 levels: Syntax (email address syntax valid), Domain (email server MX record defined), SMTP (email server up and running), and Account (email server has the address). Send custom email and newsletters to your customers without any coding. Load email information from any source such as Database, File, String, IEnumerable and so on. Specify batch size and interval. Support Windows Forms .NET applications.