While composing an e-mail, it is often a requirement to add hyperlinks to some website you may want to send the person you’re writing the e-mail to. However, the url you’re trying send them may be very long, so you would to add a hyperlink to a word which in general we write as “Click here”.
So, to add the hyperlink do as follows:
- Click on the red highlighted icon:

2. Copy and paste the URL in the text-box as shown below and Click OK:

The link becomes clickable as shown below:

Send the e-mail.
Here is my post on how to send email with C#.net