Home Runner My pleasure. I teach an online professional communications class. The videos I have been using no longer met my expectations, LOL. I stayed up late to make my own.
What's interesting and contradicting is some people, office insist to make letter double-sided plus attachments and with double sided. So when you put inside the envelope, the contents are visible through the envelope, and if I put blank page to hide it, the mail postage gets more expensive after 3 pages and you are sending to many people 20, 50, 100 and more. So I had to rearrange the main letter hidding inside the other attachments, because it has some confidentiality.
E / DL envelopes fit inside C, which in turn can be enclosed in B. You forgot to mention that there should be empty space 4 cm above and 3 cm below the recipient's address. Furthermore the return address should be crossed out.
