About message threads
Messages with the same subject, that were sent in reply to other messages, are presented in a special way. As replies to messages accumulate, they create a thread of related messages. Each reply in the thread is numbered; by default, the subject of the first reply starts with "Re:", the subject of the reply to this reply starts with "Re(2):", and so on. When you group messages by subject in list view, all older messages in a thread are grouped under the most recent message.
Following message threads
If you open a message that is part of a thread, you can open the next message in the thread by clicking Next in Thread.
To open the previous message in this thread, click Previous in Thread.
 TipThere is a limit to the number of FirstClass messages that can be displayed with a web browser. Only the most recent messages are shown. To see an older message in a thread, open a more recent message, then click Previous in Thread.
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