Netscape will allow you to Store Messages for later delivery. This technique was particularly popular in the days "before" unlimited Internet Service. This feature might be good for longer e-mail messages that take "some research"

When you have finished creating your Message...,

"Click-on" Send to put the message in the Outbox!

The example message (from above) is displayed.

Be careful...,
when you "set" the Composition Window for Deferred Delivery the "setting" stays in-place until you change it back!

To Send Messages in the Outbox.
From the Netscape Mail Window Toolbar...,
Choose File, then "click-on" Send Messages in Outbox.

Netscape will Send all Messages in the Outbox.

You can Delete the messages in the Outbox by highlighting them, ...then using the Delete Key

Sorry..., But the only way to "edit" messages in the Outbox is to Open the message..., and "copy and paste" the important parts of the message, into a "new" message.