You can embed Skype URIs as hyperlinks in your email messages and/or signature blocks as convenient ways for people to contact you using Skype.
However, keep in mind that:
Not all email applications or readers support Skype URIs (or hyperlinks in general) in the same manner. For someone receiving an email containing a Skype URI, such as in a signature block, the rendering email application might:
skype:scheme as being a valid hyperlink, and so render it as plain text (but possibly styling it in the link color).
Microsoft email applications running on Windows 8, such as Outlook and Mail, detect that there is no application
associated with the
skype: scheme, and alert the user.
Other email applications behave differently.
Keep in mind that detecting the presence of the Skype client is only important if the email application supports Skype URIs.
Microsoft email applications running on Windows 8, such as Outlook and Mail, include a link to the Store as part of its alert whenever
they detect that there is no application associated with the
Simply click the Store icon to navigate to the Skype client’s entry.