How to get iCloud to delete email from all devices

I'm pretty illiterate when it comes to this type of stuff, so please talk slowly and use small words

I have an iPad, a iPhone 4s and an iMac. When I get an email, it shows up on all three devices, which I like. However, when I delete the email from one device, i'd like it to be deleted from all devices. Is this possible with iCloud?

Thank you.

I do remember reading that iCloud only syncs your mail settings however I think this depends on how your mails are being pushed to your devices i.e is your mail account set up in IMAP or POP? I think IMAP is the method that will sync all mailboxes.

You can find out which by clicking Settings>Mail,Contacts,Calendars> "Mail" Account and see what it says.

iCloud doesn't sync your messages. It only syncs settings, calendars, contacts, etc. in your mail. I think it depends on your mail server actually (yahoo/hotmail/gmail, etc.) Maybe you can log into your mail on the web and see if there are some settings there that can be changed, instead of trying settings for iCloud.