i'm using the nokia 6500 classic, but i think what i will be describing would be common to most of the current nokia phones.
under the sent messages folder, there are two different icons for each message:
1) a closed flying envelope.
2) a closed envelope with a green "i" over it.
i am wondering what the two icons signify. does the first icon mean an unread message, and the second a read one? can my phone actually tell? i'd appreciate it very much if someone would enlighten me. thanks!

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