Sender’s name
Sender’s street address (include apartment/unit number if applicable)
Sender’s city, state/province, ZIP/postal code
Sender’s country (if mailing internationally)
Date (Month Day, Year)
Recipient’s name
Recipient’s job title (optional)
Recipient’s company/organization (optional)
Recipient’s street address (include apartment/unit number if applicable)
Recipient’s city, state/province, ZIP/postal code
Recipient’s country (if mailing internationally)
Optional: Attention line (e.g., “Attn: Name” or “Attn: Department”)
Optional: “Re:” line (e.g., “Re: Subject”)