Apple Mail app not updating from unread to read emails on iPhone

Thanks Pookie125. I removed all my blocked senders and turned the Block Sender to OFF about 2 weeks ago. It hasn't made any difference :-(

It's weird, different things seem to work for different people. Flakey indeed.

Try the following:

1. Settings > Apps > Mail > Blocked Sender Options > select "Leave in Inbox"
2. Settings > Apps > Mail > Blocked Sender Options > select "Move to Trash"
3. Settings > Apps > Mail > Blocked Sender Options > Mark Blocked Sender > OFF
4. Settings > Apps > Mail > Blocked Sender Options > Mark Blocked Sender > ON
5. Settings > Apps > Mail > Blocked > Add New ... > manually add an email address to block
6. Restart the iPhone
7. Open the Mail app and see if using the "Block Sender" feature works normally

I am just guessing with the above suggestions but can tell you that I have seen cases before where iPhone settings simply needed to be toggled to a different setting and then back to begin working again. In addition, maybe manually adding one address to the blocked list will kickstart that list as well.

Thank you, I’ll give this a try.

I don't have the option for 'List View' on my iPad ..... When I click on the three dots it says 'customise toolbar'. Am I missing something?

You go to All Inboxes or individual email, on the upper right corner you will see 3 horizontal dots … Click on it and choose List View

Do not download 18.3

Nearly all Mail send/receive issues can be solved by:

1. Back up iPhone - Apple Support
2. Update iOS on iPhone - Apple Support
3. If the email account is iCloud: If iCloud Mail isn't working - Apple Support
4. If the email account is any other account provider (e.g. Google, Microsoft, Yahoo, etc.) then continue below:
5. Remove the email account: Add and remove email accounts on iPhone - Apple Support
6. Restart your iPhone - Apple Support
7. Add the email account back: Add and remove email accounts on iPhone - Apple Support

Depending on how long ago and exactly how your Yahoo account was added to the devices can make a big difference on how smoothly those accounts work. For example, in the account on the iPhone could be using an old protocol like POP3 instead of IMAP. The methods used for authentication can also change over time and the server addresses that a provider wants you to use can also change over time. And lastly, it is always possible that the database that actually stores the email content has some corruption.

For all of these various reasons, deleting an account from a device, rebooting the device, and then adding the account back is the tried and true method (regardless of the device or OS) that ensures that an account has a freshly created mailbox database, is using the currently recommended server settings, and is using the most modern authentication (and 2FA). You may want to also consider doing the same procedure on any device that is misbehaving so that all of them are similarly using modern settings.

Another fun fact, when people reply to this thread, a preview of the Apple notification email shows up on my locked screen. But so far all other test emails, even from accounts not on my phone, do not show up. This is fun. Thanks Apple!

Just bought new iPhone 16 pro max phones today and now when ATT updated us to 18.3.1, a whole bunch of stuff, including email isn't working properly. Tried all the current suggestions and none of them have worked.

Update: I just realized my prior response was wrong. The version of Yahoo I'm using has no categories, so when I switched from "Categories" to "List View" on my phone (3 dot menu at top), everything showed up under Primary and it appeared to be fixed. But when doing that in Gmail, every ad, promo, etc. you've designated to go to other inboxes shows in Primary, so NOT a fix. It appears Apple has once again geared changes to be compatible only with their products, i.e. Apple Mail. Even shared category names like Updates, Promotions, etc. sort completely differently. So Gmail (the top email provider worldwide), Outlook, Yahoo, etc. users have no option but to change categories manually, which still won't help future/new contacts from being routed who knows where. And apparently there's no way to downgrade from 18.3.1, so I can only hope they change it back with the next update (but I doubt it).

I have same issue my emails work on cellular but not WiFi. I have tried adding accounts etc but no joy. I have no vpn etc and tried everything.

never had an issue until latest update.

please help

Thank you.

The same thing happended to me. Is there a way to backtrack and install the old version if IoS software. 18.3.1 is a disaster

I’m sorry, it didn’t help.