S60 (Symbian)

ok, first off, the email client is only going to be compatible with just those what it asks for - specifically the POP3 and IMAP4. (The email client by the way on s60 3'rd edition phones is spectacular.) Ok, so a standard yahoo email account is not going to be compatible with your phone, because it isn't a POP3 account and therefore that yahoo email account is incapable of allowing your phone to access it through the client - UNLESS ... unless you pay yahoo the 10 dollars a month fee to make the acount a yahoo plus account which IS POP3. anyways, telling you only what does not work only helps a little, but telling you what DOES work would be more so right?! haha k, so you need to get a POP3 or IMAP4 email account, which they do have some that are free - i am using gmail, which works great, but keep in mind you have to go into the settings of the email account and allow POP3. they have others of course, AOL if you have the service... um, SBC yahoo/AT&T, possibly hotmail?, and the like.

Also, one more thing to keep in mind, POP3 email accounts will not automatically update your mailbox even when you are connected to it, if you want to see new incoming mail since first connected on your phone, you have to reconnect, or re-search for new email --- IMAP4 will automatically do this. You can search all you want but ur going to need either one of those types of email accounts to make it compatible with the phone's email client.

Now, as for the messenger topic, im not 100% positive on that one, depending on the type of messenger you can get a text from your service provider for the settings if they even offer that service... or you can figure it out - most people take the easy way out and buy the true messenger application for S60 phones that includes every type of messenger for like 10 bucks.

I know this was lengthy but i hope this helps! good luck and hopefully you make it a fun experience learning how to use the phone!! It will work out!