There's nothing wrong with being a bad writer.....as long as you don't work in the news distribution and editing business. I can't weld, so I don't even try it professionally.
opening line here:
Hi XXXX,
I want to make sure that you received the invitation to our seminar that we are hosting.
another snippet
YYYYY has given this seminar in cities ranging from London to Buenos Aires to San Francisco and in large number of corporations, nonprofit organizations and PR agencies around the world. The program discusses the current evolution in the PR industry in regards to emerging media, and the tools that are helping to change the landscape.
It just goes downhill from there.