the modified email back in the network 106 it is connected to the recipients email device 107 which can be a computer mobile device or any combination thereof 207 the recipients email client program 108 will display the modified email to the recipient and what is shown is the original email with a transformed signature line 109 where the signature was centrally transformed during is transmission 208 the present invention would start with a sender composing an email that contains a specially formatted email signature ie a u201c signature block u201d the signature block contains one or more markers to indicate metadata such as contact details like name title phone etc the signature block is then processed merged and transformed with a centrally managed visual template after the email is sent either on the email server or on a smtp email relay in between the sender and recipient the visual template may contain dynamically generated content that can be influenced by the content or metadata of the email being sent the central smtp relay may override sender attributes such as title or phone based on policy as well the central smtp relay then inserts or removes fields from a template based on the existence of a field in the signature block the central smtp relay recording detection of the signature block for compliance reporting at the completion of the method a recipient receives an email that contains the merged and transformed signature along with the original message content body in an alternative embodiment the smtp relay can insert banner advertisements or other content that can be targeted based on details of the email such as sender recipient keywords in the email email client device.