Censorship

I have ever changing email addresses for friends in Cuba, very often the addresses of socios and friends of friends. The internal addresses are definitely the least reliable. When they fail, I don't get "non-deliverable" messages, just dead ends.

I don't send controversy, although one game I do like to play is to include a line that tells them the date and time I actually sent the message and asking them to let me know how long it took until they got the message...this is interesting to me as an IT guy.

The message Luisa recieved about "evil things" sounds like a joke from Cuba, or very bad programming that sent text not intended for her.

I would love to hear other peoples details on trying to maintain email communications.

Luisa - I know you have good intentions. But did you consider that passing messages critical of this thuggish regime to your Cuban friend might get her into hot water? A tourist might be forgiven not to notice, but this a 1st class police state, the 'state security system' of which was built by one of the best in this field, namely East German Stasi.
My advice: enjoy Cuba, but stay well clear of politics - if only for the sake of your Cuban friends.

There is no freedom of speech in Cuba.