Who are these people? Why don't they even need to address the postcards? Or in Her case, affix a stamp? I have no idea, sorry.
***UPDATE*** I have added the text of the two postcards 'in plain', because I guess they're unreadable. I've kept the font, but you should be able to copy and paste into somthing ugly like Arial if you like.
Sorry about that. If anyone wants to suggest an appropriate measure of correction, just in case I'm not sorry enough? Hmmm....?
From him to Her:
Yours (truly!) Servitor