SARS has some really clever people. Otherwise they wouldn't be able to implement rock-solid e-filing systems and chase down all the naughty non-payers. So you would think that this talent pool extended to online.
Here beginith the lesson...
How NOT to send an Email:
1. Don't use non-standard size fonts.
2. Don't use font colours
3. NEVER put text on a colour background if you can avoid it.
4. Attempt SOME kind of segmentation. Telling me to submit when I have already - just shows you're lazy.
Points 1 to 3 are a surefire way to land up in the spam bin. Point 4 - well that's just common e-marketing decency.