Impersonation Protection & External Email Banners Policy for email banners for Suspicious and External messages is done under the Mimecast Impersonation Protection policies.    Below are current HTML code for the banners. They are all using PBR Standard font found within our Brand Style Guide Warning banner   Warning: This message has been identified as suspicious and originated outside Puffing Billy Railway. Ensure you verify the sender and take extreme care if opening links or attachments.  
Warning: This message has been identified as suspicious and originated outside Puffing Billy Railway. Ensure you verify the sender and take extreme care if opening links or attachments.
External Banner   Caution: This email originated from outside of Puffing Billy Railway. Do not click links or open attachments unless you recognise the sender and know the content is safe
Caution: This email originated from outside of Puffing Billy Railway. Do not click links or open attachments unless you recognise the sender and know the content is safe