When Outlook Express appears, how do I send messages through Yahoo.mail?

For yahoo mail you have 2 options If you are using yahoo email you can upgrade to yahoo mail plus to get the full pop3 service http://billing.mail.yahoo.com/bm/Upgrades Click this link for yahoo mail pop3 settings http://help.yahoo.com/l/us/yahoo/mail/original/mailplus/pop/pop-35 . html Or you can use free ypops fully compatible with yahoo mail and works with Outlook, Incredimail, Thunderbird and others http://www.softpedia.com/get/Internet/E-mail/Mail-Utilities/YahooPOPs.shtml

why not try going to the tools next to favorites at top of screen, scroll down to internet options, click on the programs tab, there you will see email and other programs to set, click on it and yahoo should be in there, will be a blue line through it, click it into the line where outlook express was set to be your default email and yahoo should then be the email that pops up to frwd instead of outlook express. Works for me and I use both emails but it is easier to frwd a link or page etc, news with outlook express then yahoo for me as I only have 2 yrs experience with computers.