How to prevent email notification?

[Reverend]

Open OE.

Go to Tools > Options.

On the Receipts tab select either:

"Notify me for each read receipt request" - This option will inform you if there is a read receipt request attached and will also give you the option to send or not send a request.

or

"Never send a read receipt" - This option will not send a receipt

[JRT]

I'm using Yahoo! email... will OE options still work?

[thraxed]

yep, if ya pay yahoo 20 bucks every year, or maybe just go into option and tell it never to mark messages as read:/

[Conan]

I'm using Yahoo! email... will OE options still work?

If you're using Yahoo mail, no notification will be sent.