X-Face
X-Face is an optional, non-official header in Usenet articles or e-mails that was created in the late 1980s and allows you to insert a small black and white image encoded as text into the message.
The X-Face usually represents a portrait or logo of the sender of the message. It is limited to a size of 48 × 48 pixels and a color depth of 1 bit (a pixel can only be black or white, not gray).
X-Face: &JM1}/1+Z#oo)~-caG-act]pAR':WP"3A+SW;R0))F&=Mv|U]ToRxC#PUI#[U:nC$ey~;VC
lr6)iVO%^JvZ^<X;;s"ADOi[|r|g)Bj(y<H<SCK31T+A]BzfHoE[,}F6qjCj)gy]w1N[^1h+nx+PP{
Gs}!&S'-[^L+GuzCKz]+j!*fmPV(
The following news readers and e-mail programs support the insertion and display of these images :
- 40tude dialogue
- Claws Mail
- faces
- Wildebeest
- KMail (from version 1.8)
- KNode (from version 0.10.2 at the latest)
- MacSOUP
- Mailsmith
- MesNews
- Mozilla Thunderbird / SeaMonkey with the extensions Mnenhy or MessageFaces .
- MT-NewsWatcher
- Pan (from version 0.120)
- slrn with the macro slrnface.
- SweetMail
- Sylpheed
- X Python newsreader
- Xnews
- XanaNews
A further development is the Face header developed in 2005 , which also allows colored PNG images.