We recommend the use of PNG, JPG and JPEG images. GIF images are not supported in the Signature Editor.
The maximum file size allowed for uploaded images is 150kb (there are not restrictions in respect of image dimensions).
When an image is uploaded, it is:
- Automatically converted to 24bit PNG format.
- Resized to maintain the signature's aspect ratio.
Image screen resolution
We recommend that any email signature images you use are 96 dots per inch (dpi).