Hotfix: Failure Sending mail error with System.Net.Mail (.Net Framework 4.0) while sending large attachment

Recently one of my customer ran into an issue with his application used to send email messages using System.Net.Mail.SmtpClient (SNM) API. He used Visual Studio 2010 and .NET Framework 4.0. It’s a pretty simple code, //Sample C# code snippet using System.Net.Mail API SmtpClient MyClient = new SmtpClient("mail_server"); MyClient.Credentials = new System.Net.NetworkCredential("User", "Password", "Domain"); MailMessage MyMsg…

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General Info : Common Messaging Formats

For most organizations, e-mail messaging has become an increasingly important mode of communication. However, not all organizations use the same type of messaging systems. In this blog post, we will see the format of e-mail message and some of the common messaging formats used. Format of an e-mail message Internet e-mail messages follow the format…


Behavior changes in Outlook : MAPI & Custom properties

Per the knowledgebase the implementation of MAPI in Outlook has been changed to control how custom properties can be created. To guarantee consistent use of custom properties, custom properties must already be used in the organization or on the Outlook client. As soon as custom properties are being used or are registered, the custom properties…

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