Sending SMTP Mails through C# Application

Computers & Technology

  • Author Luis Henry
  • Published January 10, 2011
  • Word count 514

Sending and receiving mails have become a part and parcel of the net savvy persons' life. Emails have become a modernized method of interaction with anybody having an access to computer and internet connection. This innovative mode of communication has become a hot favorite in the business world. The businessmen find it a convenient tool to be in touch with the other businessmen as well as clients. Of several protocols of sending mails, SMTP is the most popular along the length and breadth of the globe.

Without the involvement of an SMTP server, it is not possible to send SMTP mails. The easiest and simplest way to do so is using a Google's Gmail server. So you need to create a Gmail account. I can assure you that it is fairly easy to create an account in Gmail. With the .Net framework in use, C# can send mails easily and efficiently. This means you have to replace System.Web.Mail with System.Net.Mail namespace. In the second namespace, you have to use System.Net starting on .Net platform 2.0.

If you have very poor knowledge about the net connection, then you must require a wee bit of information in order to establish connection with your Google Server. The first and foremost information you require is the address of Gmail's SMTP server. This much-needed address is smtp.gmail.com. As C# application is in use, so it must be connected through the port 587. Google provides all the developers with every crucial piece of information at free of cost. In case you are using other SMTP servers, you will be provided with the respective address and port connection.

Now generally all the SMTP servers need authentication if you want to send emails through them. That is why having a Gmail account is so much important while sending SMTP mails. Enter your username and password through NetwordCredential .Net to get the must-have authentication. Make it a point to place @gmail.com in your username.

SMTP Client class remains behind the curtain to handle everything required for mail sending. The class is at the helm of performing several important tasks including attachment adding and HTML sending. Most of the clients have no problem to decipher the HTML mails or receive the formatted texts as well as images, sent through the C# application. Now sometimes, the senders wish to add headers to their emails but do not know if the servers will allow them to do so. Well, they can certainly do so with an SMTP Client class. Now remember that some SMTP servers simply set the headers at naught and only value the information in your account. Google's server is one that completely ignores whatever a user inputs as header. For example, it pays no attention to the 'From field' set by the mail sender as this field is automatically created by Gmail. Last but not the least, make it a point to enable SSL, an encryption protocol on your C# platform. Until and unless you do so, your connection will not be accepted by your Gmail server.

Luis Henry is working for a SMTP servers related company. So he has vast knowledge on SMTP . For more he suggest visit http://www.mysmtp.eu/.

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