Im receiving this error with my i cal using my yahoo e mail: The URL https://caldav.calendar.yahoo.com/principals/users/oljfajardo/ encountered HTTP error 404. Make sure the URL is correct.

phone ask me caldav password what is that
There's not much I can add. I have a Yahoo! account I do not use much. I also have had issues because of this. I mainly use Google and do not have any issues getting that mail via my 5C. I even use Chrome as browser sometimes, but find most iPhones seem to prefer the native Safari.
Initially try: Settings > Mail,Contacts,Calendars > right chevron on Yahoo! > right chevron on Account = make sure your password is showing here or reenter > Done (if you do not enter the correct password here, you should get a caution message).
I only allow Mail. CalDAV would be a calendar sync problem. Turn it off if you do not use it. ...that should do it.
Good luck!

To set up a Yahoo! Mail account for sending and receiving emails in iPhone Mail:

• Tap Settings on the iPhone Home screen.
• Go to Mail, Contacts, Calendars.
• Tap Add Account... under Accounts.
• Choose Yahoo!.
• Tap your name under Name.
• Type your full Yahoo! Mail address under Address.
• Enter your Yahoo! Mail password under Password.
• Tap Next.
• Make sure Mail is ON.
• Tap Save.
• Press the Home button.

If you installed Google Chrome, that is a web browser. Both Google and Yahoo are web based services that load on the browser. Just type in Yahoo on any browser and use like any web page.

They both also have tool bars. Same principal. gl

If you are running iOS 4.x software or newer

1. Go to the ipod touch settings application
2. Tap Mail, Contacts, Calendars
3. If you have a Yahoo mail account setup click on that account and turn on the calendar sync option
4. if you don't have an account setup, click Add Account and then click Yahoo
5. Fill in the fields requested and click Next
6. If you are successfully logged in you will be allowed to turn on and off specific sync services. make sure that calendar is in the on position
7. The next time you open up your ipod touch calendar you will see a page allowing you to select which Yahoo Mail layer you would like to view or edit

If you are running iOS 3.x

1. Go to your iPhone or iPod Touch settings application.
2. Tap Mail, Contacts, Calendars.
3. Tap Add Account.
4. Tap Other and then tap Add CalDAV Account.
5. For the Server you can simply type yahoo
6. Now enter in the Yahoo! ID and password you use to sign in to your Yahoo! Calendar
7. Once you click save, the iPhone or iPod Touch will verify your Yahoo! ID and password.
8. The next time you open up your iPhone or iPod Touch Calendar you will see a page allowing you to select which Yahoo! Calendar layer you would like to view or edit.

my understanding is that you need to have yave yahoo plus to get this to work, yahoo plus is the paid version for you to have pop access which means be able to use an email client (like outlook) to retrieve yahoo mail there.
now if you have not paid for yahoo plus you can do the following:
1. switch your yahoo account to be localized to asia, which should also (for now) allow you to use pop access on a free yahoo account, you need to look around into the account options (Its under Account Info, Account Settings,Set Language Site and Time Zone or something like that)
2. once 1 has been completed go into yahoo and add your yahoo account, * for logon info use only your yahoo user name (not the @yahoo.com) * enter your correct password *for incoming email server: pop.mail.yahoo.com *for outgoing email server: smtp.mail.yahoo.com
3. go into more settings>advance * incoming server port should be 110 *outgoing server port should be 587
good luck

Yahoo Mail and the URL that you have provided is just the same

"https://login.yahoo.com/config/login_verify2?&.src=ym" - this URL is a link where you can access your Yahoo Mail. You may enter your user name and password. Then click on login.

Just login to it, and you will see your Yahoo e-mail.

Thank you!

just download cc cleaner in filehippo.com the run it,

Bingo! your problem is solved!

Thanks!

RF Mercado

https://login.yahoo.com/config/mail?.src=ym&.intl=us

go here and in the bottom of the sign in box, it says, "dont have a yahoo id? siging up is easy" then theres a "click here" where you click to sign up!

Check here, instructions for Incredimail and yahoo e-mail setup:

http://www.incredimail.com/english/help/im/yahoo.html