Thanks Dirk for the info. Worked great. I did have to format my zmprov command a little different. Here is my command
Code:
zmprov ma user@domain.com zimbraPrefMailSignatureHTML "<table><tr><td><img src = 'http://www.domain.com/signatures/Logo_Edit.gif' /></td><td><div style='border-left: 3px double rgb(51, 68, 119); padding: 0px 0px 0px 7px; font-family: verdana,sans-serif; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10px; line-height: 14px; font-size-adjust: none; font-stretch: normal; color: rgb(51, 68, 119);'><span style='font-weight: bold;'></span>Name<br>Title<br><a style = 'text-decoration:none; color: rgb(51, 68, 119);' href = 'http://www.yourdomain.com'>Company Name</a><br>Address_1<br>Address_2<br>City, ST 99999<br>888.555.1212<br>user@domain.com</div></td></tr></table>"
I am using our website to host the image.