Let's say someone sends you an email with an attachment in it. Now, you want to save the email but, not the attachment. Here is what you do.

1. With the email open press control + F to forward the email to yourself or to whomever you might want to send the email to without the attachment.
2. Enter in to whomever you are sending this email to.
3. Tab down to where the email says attachment and press the delete key or you can also, press the applications / context menu key, arrow down to remove, & press enter to delete the attachment.
4. Now, tab down to the edit field, make any changes, or remove old email addresses and stuff like that and send the email. Now, when you send this email it will be without the attachment.

Note: When you delete an attachment, you better be sure that you want to delete it, because once you do , it is gone , permanently! Test show that whatever is deleted does not go into the Recycle Bin.