Guidelines for email signatures:
- Text only is dependably consistent
- Avoid attached images (logos, social media links, photographs, etc)
- Avoid HTML formatting—some recipients will see text-only
- Wise sayings and witty aphorisms may not be appreciated
The illustration shows how confusing images (logos, social media links, etc) can be. The sender believes that the message has no attachments, but the receiver sees five attachments. If there were a file attached, how would the recipient know which of the (now six) attachments is it? In addition, attachments in emails may be viewed with suspicion by spam filters and security software.
One thing that this sender did correctly was to make the contact portions of the signature live text—it can be copied and pasted. He also used a web-safe typeface (Georgia). There is simply no guarantee that the recipient will see your message in the typeface you specified, but the chances are increased with web-safe fonts.