Can i reset my Pumaphone? I can not delet the mail.

With Partner Mail you do not have to re-initialize the mailbox to reset the password. There is an option just to reset the password. If you re-initialize the mailbox you will delete existing messages and greeting.

Go to the account online and delete from their and reset all settings on the browser :)

Surely you don't have 4000 emails loaded for scrolling on the screen? On my HTC EVO mail screen: /menu: /sync,send and receive., I can limit the amount or days of emails recently received being displayed. I can delete them, mark them as junk and all kinds of things. You need to learn how to use the phone email editing features. 95% is junk mail and needs deleting when you get it. You can reset the phone and wipe out all your pictures and phone calls. You can remove the Memory chip and edit it.Those emails are on a server until you delete them there and may show back up. Write down all your mailbox info and password before resetting.
http://www.thefullsignal.com/htc/htc-wildfire/5582/how-hard-reset-htc-wildfire

Easiest way to reset the phone is to unplug it then plug it back in. If you are talking about resetting the voicemail associated with the phone extension, that's a little more involved.If you need the voice mail reset, you need to have the voice mail administrator (typically the receptionist) go into his/her voice mail and choose the MGR option if using the display "softkeys" and follow the prompts to reset the users security code or voice mail acct. If softkeys aren't available, follow the voice prompts to "system manager" and either delete the security code or reset the extensions voice mail entirely.

clear cached and cookies;
Start>control panel>internet options> under General TAB>click clear cache and cookies/clear history/delete browsing history
short cut: open Internet explorer>tools>internet option>under General TAB>click clear cache and cookies/clear history/delete browsing history
you can also reset your browser in to it's default functionality: Start>control panel>internet options> under Advance TAB>click reset Interner browser
shortcut: open Internet explorer>tools>internet option>under Advance TAB>click reset Interner browser

Click on forgot password and choose to reset by security questions instead of email, Then answer the questions with your info and you will get a reset password.

Try resetting Internet Explorer.
U can get help in resetting IE in the link below
http://support.microsoft.com/kb/923737

If that doesnt work try deleting the files manually.
If u are not able to delete it since u are getting an error, try some software which can do a force delete.

try to move that picture message to another folder then delete the same......

In this you need to delete the yahoo mail service book from your Handheld once you delete the service book the yahoo icon in your Handheld will dissapear.
I hope I was able to help you.
Thank you for using Fixya.

Change an account’s settings: Choose "Mail, Contacts, Calendars," choose an account, then make the changes you want.

Delete an account from iPhone: Choose "Mail, Contacts, Calendars," choose an account, then scroll down and tap Delete Account.