My accounts in Mail app stopped to sync post update

The same issue.

partially was solved with “/“ in advanced settings of IMAP. But still have an issue with erasing of email. I do Delete and they come back.

also, Exchange server for work email - stopped to work fully

that will be other type of issue, that is cert-related, not mail itself. 143 port offer often starttls (only explicit disable on some ip/subnet on the server can give possibility to raw client traffic traces, otherwise will be ssl-ed). so check the certs and their trust in system.

this issue initialy related to ios 18+ and problems are after server-login occurred (account added also as login checked in config without errors, but not getting messages from folders)

If you can not receive iCloud mail, go to Settings/Your Name/iCloud/Mail/iCloud Mail, and make sure, that "Use on this iPhone" is enabled.

Set up iCloud Mail on all your devices - Apple Support

Troubleshooting can be found in this article:

If iCloud Mail isn't working - Apple Support

I did not run into any issues using my 3rd party mail accounts or iCloud Mail on my iPhone after the iOS 18 upgrade.

@ingo2711 if you are referring to my comment --

I have deleted the account 20 times. I deleted the Apple Mail app from the phone, reinstalled from the App Store. it didn't help.

my comment about 3rd party email -- is a 3rd email app called Email - Edison Mail (from the App Store) I set up my mail accounts in the app and everything works as it should.

BTW - I never had the iOS 18 beta.

https://apps.apple.com/us/app/email-edison-mail/id922793622

The issue is with the Apple mail app.

I've never had the iOS18 Beta installed,

As mentioned before, you can use the iPhone Feedback link, selecting the iOS 18 version is not required, Apple seems still be updating the iOS 18 related help articles, and the list is not complete yet.

The more users do this, the more attention will this issue get, when Apple techs go through the Feedback reports.

Feedback - iPhone - Apple

I have just installed iOS18.0.1 and the problem persist.

3 WEEKS without syncing mails on my iPhone.

How much AI is required to fix a sync issue with the mail app???

Log your complain here: Feedback - iPhone - Apple

Hi,

I am also expriencing these issues with Apple Mail App in iOS 18. Apparently mails are not displayed on iPhone 15 pro and iPad Air (M1). The app sometimes shows a 'Network error (POSIX 96)' error message, but also states a latest update timestamp - but no (new) mails displayed.

I have tried the following:

• Restart Mail app
• Restart device
• Reset network settings
• Uninstall Mail App -> Restart device -> install Mail App

None of the above has remediated the issue.

Sending Mail does work though.

Using the mail account with e.g. Outlook works.

Mail works under Mac OS Sequoia (Apple mail app).

Please fix the Apple mail app for iPhone and iPad!

Cheers,

Martin

Go to apple.com/feedback and sent in a Bug Report. It's the best we can do right now.

You can not choose IOS18 as operating system, but it's not mandatory, so just write it in your feedback.

My email wont download on ohone either! Ios18

Disabling SSL is not recommended, as it makes your iPhone browsing less secure. Your data can be intercepted more easily on unsafe sites.

Same problem here with Cyrus 2.4.17.

98 / 5 000

We would expect a reassuring answer from Apple that they are dealing with our Mail problems at all !!!!!!

My hosting provider (Webland.ch) confirmed there is an issue syncing mails on iOS18 and Apple "found the cause and the problem should be fixed in the next iOS18.1 update".

I’m having the exact issue with Namecheap / Provateemail.com email that used to work with Mail iOS app. Please Apple. I didn’t buy new iPhone just to have issues like this.

I have the same problem, I have to use Mail only on the iPad and MacBook 😠