How to paste affiliate banner to out going emails?

[Abby]

I know it has to be in a HTML, and in a signature line. What else?

 

[Bruce Hagen]

Note: HTML Signatures must be less than 4KB.

Open a New Message window and create your signature. (Insert graphic &
text). Click the Source Tab. (View | Source Edit if not already checked).
Highlight the entire source code and copy / paste into Notepad. File |
Save As and in the File Name field, save as an htm file, (i.e. Sig1.htm).
It will be saved to My Documents by default. Go to Tools | Options |
Signatures. Click: File | Browse and Insert your saved signature | Apply.
You can rename it now if you wish.

Of course, if the recipient is reading in Plain Text, they won't see it.