In ,
jessy typed:
I have got two differents name's accounts with Yahoo,

You mean, you have two different Yahoo e-mail accounts, which you check in
Outlook?

I would like to
transfer part of the messages from one account to another, is nearly
at 85% full.

Not sure what you mean - do you mean your Yahoo mailbox is nearly full? This
doesn't really have anything to do with Outlook.

I have tried with Reply and Forward selecting several
messages but it allows me only one by one. I have around 950
messages.What can I do.Thank you in advance!

I'm afraid you'll need to be a little clearer in your post in order to get
any help.