I have only seen examples with red lettering and was wondering if anyone has used any other colored font.

I hand wrote the address on the envelope and typed the letter in a red handwriting font.

Daniel Hornsby how did you turn your handwriting into a font??

., you can also download fonts that look like they are handwritten.

My letters have a hand written font based on my handwriting.

I used a handwriting font for the letters, and then actually hand wrote the envelopes.

The mail piece is a white envelope with handwritten font on the outside.

We use regular "white letters" with normal font for a number of groups such as probates, code violations, divorces, etc. - professional, with our logo etc.We send mostly postcards to the big pools like absentees, sr. citizens, etc.  

Called an Equity Purchase Agreement, the law specifies the specific minimum language and the font size.

Email content: In general, the subject line is being repeated in a big bold font again in the email.