Reply #69: Come on, read it again. He's not saying mail IS delivered on Sundays,

[DemBones DemBones]

he's saying that since the government has removed prayer and the Ten Commandments from schools, banned the Ten Commandments from display in courthouse and other public buildings, why don't they go all the way and make government employees work on Sundays, including Easter Sunday.

He's saying he WANTS mail to be delivered on Sundays, not that mail IS delivered on Sundays. Of course, he doesn't really mean that, he's being sarcastic.

And I didn't write the letter so it's no use for you to tell me things I already know, such as that Easter and Good Friday are not federal holidays. I suspect the writer knows that, too, but didn't make himself clear. Mistakes in writing are not uncommon; some published writers write poorly.