“America’s Most Trusted Name in Lead Generation”
The population born between 1946 and 1964 are 74 million strong and has more disposable income than any other generation. They are more likely to be in the upper-income group. According to Pew Research, 27% of boomers are in the upper income bracket, which is the highest figure of all generations.
Be careful with “official” envelopes. Faux express envelopes, government notices and other formats can be used to great effect. However, be clear about your intentions. If it's just part of the theme of your message, and people are clear about who you are and what you want, that's fine. If you're trying to trick people or pose as something you're not, that's unethical. If you have to deceive people to get response, there's something wrong with your product or service.