On Monday I sent an email (sorry, "memo") to my wife

As soon as I'd pressed send I realise that I had put ".net" instead of ".com"

Yesterday I received a "message undeliverable" notification informing me that it had tried to send it 7 times and it would keep trying for another 3 days

this morning I got another "message undeliverable" notification informing me that it had tried to send it 7 times and it would keep trying for another 2 days.

For crying out loud! Why won't it just give up?!!!