Yes. Generate lead interest directly from your emails.
You are going to want to create a Hyperlink from your IDX Link first. Then follow the corresponding tutorial for adding a signature to your email.
Outlook/Hotmail:
https://support.office.com/en-gb/article/Create-and-add-a-signature-to-messages-8ee5d4f4-68fd-464a-a1c1-0e1c80bb27f2?ui=en-US&rs=en-GB&ad=GB
Apple Mail:
http://macs.about.com/od/appleconsumersoftware/qt/Add-A-Signature-To-Your-Email-Messages-In-Apple-Mail.htm
iCloud:
http://support.apple.com/kb/PH2630
Gmail:
http://www.wikihow.com/Add-a-Signature-to-a-Gmail-Account
Yahoo:
http://www.wikihow.com/Add-a-Signature-to-Yahoo-Mail
Thunderbird:
https://support.mozilla.org/en-US/kb/signatures