XFaces
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What is this ?
A number of GUI based mailers allow the user to supply a small monochrome 48x48 pixel image of himself or just some icon, he'd like to represent him.  A compressed copy of this image is attached to every outgoing message in the X-Face header line.

Viewing XFaces
If you have installed EnhanceMail, attached XFace images will automatically be displayed without your having to do anything.  To disable the display of XFaces, uncheck the Show XFace check box in the Images Preferences panel.

As XFaces generally tend to be the lowest image quality, X-Image-URL images (if available and enabled) and Mail People database images will override them.

Sending XFaces
To send out your own XFace image first a create grayscale 48x48 pixel tiff file.  You can make the image as deep as you wish, but as only one bit per pixel will be transmitted, any depth beyond that is just a waste of disk space.  Then follow these steps.

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Potential problems
XFace header lines tend to be long and spread out over more than one line.  Such multi-line headers are legal according to all the mail standards.  Unfortunately a few old and/or ill-designed mail gateways and list servers will mangle them and recipients will see jumbled XFaces.  This is not an EnhanceMail or XFace problem, nor is there a simple work around which isn't likely to cause more problems.  Please complain to the author/maintainer of the mangling software.
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