How do I delay sending an email in Yahoo?  I do not have Outlook &
just want to know how I can delay-send so my clients don't know I'm
working thoughout the night.

Hi lightbulb1,

There is no built-in mechanism in the Yahoo! Web mail client to delay
sending an option. Even with an email client like Outlook Express you
may not actually predefine what time a message to send to. The only
solution to such a problem may be with an Information Management tool,
which allows you to set reminders and upon its expiry allows you to do
various things as per your liking, such as sending an email.

With the Yahoo web based email interface your only solution is to use
a facility called "Drafts". What you may do is, if you do not have
enough information ready for a reply, but you have some parts of it,
you may compose a message (mail) and save it in "Drafts" folder
instead of sending it.

Saving a message in the Drafts folder can bring you many advantages
including these:

(1) Compose messages on part information and complete it later.
(2) Compose messages with some of the attachments and add more later
if you are facing a network bandwidth issue.
(3) Allow a reviwer to review your message before it is sent. (Useful
in case an account is accessed by many persons working together as a
team).

So, in my opinion, you may use this feature of saving a message as
Draft and it can be beneficial for you in many ways.

Your clarifications are most welcome!

You could try using an automation tool that can automate tasks.

Macro Scheduler automation tool (says "This automation software is the
ideal tool whether you need to launch certain applications at certain
times of the day, send and receive email":
http://www.mjtnet.com/

Freeware automation tool (not sure if you can specify time with this):
http://pricelessware.org/thelist/dev.htm#Automation:%20Batch%20Files

Application schedulers...didn't read up on these much myself though.
http://www.softlookup.com/category.asp?ID=136

Hope this helps.

Use this http://futureme.org/index.php