Flagged forum notification as spam in error

[vish]

i saw the discussion about spam in this forum.my friend and myself are new internet users.he registered in a website forum dealing with diabetes.he accidently clicked spam icon in his yahoo mail for registration confirmation message but retrived from trash box.we first thought this will be notified as spam and he wont get any message in future but he is still able to chat in the forum and getting messages from the forum.so clickin spam icon does not prevent messages in future...?

[rogerd]

Hi, Vish, there are a couple of possible explanations. First, many spam filters will update their criteria if you recover a message from the spam filter. I don't know if that applies to Yahoo mail, though.

Second, it's possible that subsequent messages are different enough that they aren't triggering the filter; i.e., the confirmation message may come from a different address or look different than post notification messages.

As far as posting, that is usually only governed by proper registration and clicking on the confirmation link if that step is used.