Scenario
Your signature is rendered as a bitmap. You notice that when sending an email with the signature, the signature has been converted to an attachment or is missing.
Reason
This can occur when some mail clients strip elements from bitmap signatures, such as when using custom fonts or background images. This causes the signature to be removed, and in some cases, sent as an email attachment.
Resolution
To avoid bitmap issues, use the following workarounds to stop the signature from rendering as a bitmap.
- For custom fonts, use a font stack to set up a list of 'fallback fonts' to display if your chosen font is not available.
- For background images, consider using a background color instead. You can also overlay an image on a background color. For more information, see Difference between background image and background color.