If the recipient chooses to view in Plain Text then it will strip all formatting and use a monospace font eg: consolas If recipient has chosen to not allow messages to use other fonts and has specified what font they wish to see then it may explain another reason. If recipient's computer does not have the century gothic font installed on their computer then it will use the nearest equivalent font. Windows OS usually includes Century Gothic. But MAC OS and Linux OS may not have this installed by default. If you have the contact in your address book and have selected that that particular contact likes to receive in Plain Text, then they will not see the html formatting. If you are creating the email in html, but only sending in Plain Text then the formatting is not being included. Check Send Options to ensure you are sending using HTML and Plain Text. 'Menu icon' > 'Options' > 'Options' > 'Composition' > 'General' tab click on 'Send Options'. If: 'Menu icon' > 'Options' > 'Options' > 'Composition' > 'General' tab HTML font: is set as 'Variable width' This means in the 'Write' composing window, you can choose what font you want to see when composing eg: century gothic font by setting it in the 'Display' tab or in a user created userContent.css file. But it is not hardcoded into the formatting when sent. This means the recipient can choose their prefered font when reading emails. This maybe important if the recipient has eyesight issues. IF: 'Menu icon' > 'Options' > 'Options' > 'Composition' > 'General' tab HTML font: is set as 'century gothic' Then this font will be hardcoded into html email and if you are sending in both html and plain text, the email will contain that information. IF the recipient is viewing the email in orginal html and has the same font installed on their computer and they do not have anything set up to override anything, then they should see the same as you intended.