Net::IMAP::Client says 
    # copy messages between folders
    $imap->select('INBOX');
    $imap->copy(\@msg_ids, 'Archive');

    # delete messages ("Move to Trash")
    $imap->copy(\@msg_ids, 'Trash');
    $imap->add_flags(\@msg_ids, '\\Deleted');
    $imap->expunge;

[download]
IMAP has no built in move command, when you move a message you actually copy it to another folder and then delete the original (mark as deleted, expunge).

In reply to Re^2: How do I move mail msg to another folder in ECHANGE via a MAPI connection? by Anonymous Monk
in thread How do I move mail msg to another folder in ECHANGE via a MAPI connection? by boat73

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