Outlook - Signature Sometimes as a Link (like my Facebook Signature) and Sometime Not

Issue:

Mystery:  from time to time I right click and change my signature and one out of three or four times Facebook link shows up-  I have no idea why.   

Resolution:

We have seen this in the past with users that have their phone's synced and have their Contacts linked If one of the Contacts you have selected as the Default (their Mobile or Email) was sent and email, your signature with the Facebook link was used, that's the one it's going to send.

Hope this answers your question.