iCloud Mail not syncing across devices

GREAT NEWS folks... I think “I think” the problem been resolve in the latest iOS14/iPadOS 14 Beta 6. I have noticed messages started to sync. Settings in Mail (Push; ON) and (Fetch: Hourly).

Fingers crossed this will Carey on working.

There are a lot of Auto-updates throughout the Apple ecosystem. Is it possible to list all hardware device models, along with MacOS and iOS versions?

Sometimes looking at the list and doing simple internet searches reveals the solution...

In my opinion, Apple and the Community will help you find answers.

I think maybe this worked for me too after I restarted my phone. I kept meaning to reply here but I kept forgetting but mine started working again soon after this and has been ok for several weeks again. Fingers crossed it stays...

Yes. I found the problem was with my iPhone. I simply signed out of iCloud on my iPhone and then signed back in.

[Link Edited by Moderator]

This fix worked for my iPhone and iPad Pro, however after a couple of days, both have reverted back. For example, when I mark an email as Read on my iPhone, it doesn’t show up on iCloud, or then the iPad Pro. Same thing applies to the iPad Pro.

Has anyone else had this issue?

It use to work that way so with one of the iOS updates or Mac OSX updates something has gone awry. The only way all devices actually mirror is if the changes are made directly when logged directly into iCloud.com. In this case mail deleted, read here, filed into folders will show up the same way across devices. But not the other way running mail from iPhone or Mac (yes and logged in with your Apple ID).

Sorry...I can read my mail on iCloud.com and it doesn’t change on my phone or iPad. It still stays unread until I open the mail app.

Apple screwed this up and it’s been over a year with no end in sight.

Nope.

I’m sitting at my desk. I have my iPad Pro and IPhone (both signed in to the same iCloud ID), along with a desktop PC signed into iCloud.com. All three are on the same WiFi network. All three have Mail on the screen. When I delete/read an email on the web browser, it deletes/reads on both the iPad and iPhone. When I read/delete an email on the iPad, it does the same on the web browser and my iPhone. When it read/delete an email on my iPhone, nothing happens with the web browser or iPad.

My iPhone is the only device not “pushing” what I’m doing back to iCloud.

I have somehow exactly the same problem, since a week now, whenever I make changes in mail app on iPhone 11 Pro, on all other devices the changes does not reflect. On my other iPhone all the messages moved or read are showing unread and still in primary inbox, on the icloud web all the read and moved to folder messages or deleted one the iPhone 11 Pro, are still there in inbox like no one touched them.

Any solution for this instead of signing out and signing back in?

I literally tried connected a usb cable between iPad / Mac / iPhone connected them on the same network the mail id signed on all devicesis example1@icloud.com , if mail is send from iPad to iPhone / Mac they show blue dot ( that is unread ) on iPad , as soon as I just tap / click on it the blue dot disappears ( shown as read ) on all devices .

There is no issues , mails do sync / works with read / unread .

Fine you don't like usb cable method to sync mails , sign with same Apple ID and password it depends which mail service is signed in all devices it could be example2@gmail.com or example1@icloud.com

How to transfer mails from Mac to iPhone / iPad , even they are signed in with same Apple ID and password say example1@icloud.com 

In iPhone go to settings > in password and accounts > click on add account you can select the desired account it could be gmail , enter gmail address and password and sign in it will prompt to check calendar , mail , notes ,slide the box of it to green , the apps data will start syncing ( in this case it will be mail )

there is option fetch new data - push > in iPhone

Thank you for the stating the obvious.

I am using ONE email. It is an iCloud.com email address. APPLE'S own service. There should be NO REASON that we must open the Mail app on all devices to update them. They should sync automatically. My Outlook app with my work email address syncs perfectly between my iPhone, iPad and my Windows PC provided by my company.

Apple needs to get this together.

What does Apple have to say about this?

I have been having the same problem and Mail actually keeps locking up and i need to force quit several times a day??

What are we supposed to do?

I have paid IT guy almost $1k and still no fix............

Come on Apple lets resolve this for all please.......

Just started 2 days ago with this!

Iphone is main point of email usage for me. Ipad and icloud.com or the actual mail app on the macbook itself are secondary - swipe delete or send a mail on the phone and nothing updates anywhere else

Just had to go through 81 mails on the macbook to delete the ones I've already read and deleted on my iphone throughout the week....is it a mailbox size issue maybe? Remember on older ohones your mail would stop updating because your mailbox size would get full so nothing would sync......

It is happening to me since July 17, my iCloud Mail have no the same information that my Mac Mail, the one that is correct is the Mac Mail, I have tried to rebuild, and it is takes like 5 days, with out completing anything, tried to disconnect from iCloud on iPhone, nothing, the iCloud is not get synchronised correctly, I do not know how to force iCloud to copy what is on the Mac Mail.

Any idea?