Copies a message to another folder  without  deleting  it  from  the
  current  folder.   If  the  specified  folder  does not exist, it is
  created.

  If you want to copy a message to a sequential file (outside of MAIL)
  instead of to a mail file, use the EXTRACT command.

  If you enter the COPY command, supply a folder-name, and then decide
  that you do not want to copy the message, enter CTRL/Z.  CTRL/Z will
  abort the operation and keep you within MAIL.

   Format:

       COPY folder-name [file-name]

Additional information available:

ParametersQualifiersExamples

 folder-name

  Indicates the name of the folder to which the message is copied.  If
  the  specified  folder does not exist, it is created.  A folder name
  can be 1 to 39 characters in length.

 file-name

  Indicates the name of the mail file to which the message is  copied.
  If the specified mail file does not exist, it is created.  If a file
  name is omitted, the message is copied to the  specified  folder  in
  the current file.

Additional information available:

/ALL/CONFIRM

 /ALL

 Indicates  that  all  the  currently  selected  messages  are
  to  be  copied  to  another  message folder.  You select a folder by
  entering the SELECT command followed by  the  name  of  the  folder.
  (See the SELECT command for more information.) If the /ALL qualifier
  is omitted, only the current message is copied.

 /[NO]CONFIRM

 Determines whether you will be queried about creating a new folder. The
  default is /CONFIRM.

  1.
       MAIL> 2
       MAIL> COPY
       _Folder: MEMOS
       _File: <RET>
       MAIL>

  This example shows how to put a copy of a mail message into  another
  folder (MEMOS) in the default mail file.