Mail not working on iPhone after iOS 18 Update

Dtlwssm_2022 wrote:

AGAIN! Maybe the software people should go back to testing their software before making so many people’s computers useless, until they’re ready to fix it. No customer service here.

I’d suggest logging the details of this error with Apple or with Apple Support, including the errant folder names and the IMAP server identity and version, as IMAP is less than completely standard.

KiltedTim wrote:

Millions of people have upgraded and not experienced this problem.

You might not have noticed the news today.

millions of Rogers network users in Canada did experience this issue. Plus there are numerous tech blogs bubbling about it.

It seems to me that TWO big regressions are active in this release - iOS mail client has some funky bugs with imap prefixes; and, there’s this fetch mail bug also.

the OP may well have a separate issue with the TLS 1.1, but this ios/ipados 18 mail app issue is growing and already pretty big.

apparently ipadOS is bricking iPad pros also. Thankfully, I didn’t experience that bug.

iOS18 Mail has gone from being not very good under iOS17... to completely useless. I use it for a few mail accounts [Yahoo! and Gmail] for the convenience of having everything in one place. My Yahoo mail has a good number of subfolders in the Inbox, which synced most of the time before the update. Now they are all empty on iPhone and iPad. Fortunately I have the Yahoo and Gmail apps. Apple sort this out!

As I use Microsoft Outlook on my desktop Mac, I tried it out on my iPhone and iPad. It connected instantly and showed all Inbox folders, and their contents, INSTANTLY! So it's now my default mail app on both.

I’ve deleted and reinstalled once, with no improvement. I don’t fancy doing it again and again: I’ve just made Outlook my default mail app. It’s vastly superior and works with both my Yahoo and Gmail accounts. Bye bye, iOS Mail!

Since installing iOS 18 my Apple email has reported ‘incorrect password’ on both my BT email accounts. The password has not been changed and mail works fine on iPad and Mac. Other email accounts are fine. Had to delete the account and reinstall it. Clearly an app / iOS error that needs solving quickly.

Had the similar issue with Mail app. I tried using Outlook app to setup my work email. This time the email was able to fetch all the emails. But i still couldn't send out emails. The error is as attached. So far there is no way or fix for this issue.

If you have a non-Apple email service that you access via Apple’s Mail app and that is not functioning correctly with that Apple app as it once did then I do strongly recommend that you contact THAT email service provider as well. I know that doing so can often be a relatively major time commitment but they *should* be able to be at least as helpful as Apple was for you if not moreso (no guarantees though, of course).

On 2 iOS devices I deleted the mail accounts, re-added them back, the mail (1000s of messages) downloaded just fine, but then after that no new email downloads and changes to the messages are not reflected back on the other mail clients.

iPad 18 and MacOS 15 mail work, but iOS 18 seems not to communicate with the server properly. Outlook works.

"Checking for Mail..." hangs. After the connection, the server is waiting for commands.

The server is Dovecot

Connection closed (IDLE running for 0.001 + waiting input for 119.863 secs, 2 B in + 10 B out, state=wait-input)

S0m3Th1nG_AwFul wrote:

iOS 18.1 release didn't fix the issue.

I suspect it somehow related to having non-ASCII (non-Latin overall) symbols in folders' names as it was mentioned by someone earlier, but not 100% sure.

Nope. Has nothing to do with non-Latin chars.

it’s not fixed. I had an iPad on 18.1 that I migrated to a new iPad. All my mail showed up on the new iPad but no new mail has been fetched since. The bug has to do with a faulty fetch new mail from imap process.

Everything was working fine for me until this past Friday. Now NONE OF MY IMAP ACCOUNTS CONNECT within the MAIL app!!

I am not able to access my IMAP accounts now on the following:

1. iPhone 15 Pro Max - iOS 18.0.1 (only works when I close the app and restart it)
2. 2015 MacBook Pro Big Sur 11.07.10 - was working fine until today, Nov 4, 2024
3. 2023 MacBook Pro that is 3 days old running Sequoia 15.1 - zero connects

It continually tells me on my MacBooks that it cannot access the servers to verify.

On iPhone I get error POSIX 60, close the app, restart and it will access accounts until the error pops up again.

I have called and reported all of these issues and totaled close to 6 hours with senior support doing EVERY troubleshooting step possible. I now have an open case that shows all of these issues. I would encourage others to do the same, as that is the only way the engineers are going to look at the software. I was told by support that they do not check this forum for issues.

Correct and congratualtions. I’ve been telling folks here to contact their IMAP mail service providers to get the needed support and updates right from day 1, Apple support staff *should* be telling them to do the same but apparently are not. And updated info needed from all of the various providers can and often does differ from one provider to the next, unfortunately.

I received the answer from my email provider, that the IMAP issue is caused by a bug in iOS 18 and iPadOS 18.

They suggested to report my problem to Apple.😅

So, Apple please would you fix this problem?

This works for me:

I get my IMAP email only to work once, after I reboot my iPhone (18.2 EU). Not really the best way. For now I am using webmail via browser, but I would really appreciate a fix asap.

EXACTLY the same result for me on my iPad and on my M2 Mac Mini, after updating both.

I don't know if this will help anyone, but this is what happens when I try to send a message from the affected IMAP email account. (Oddly enough, I can receive messages, but cannot forward them, reply to them or create a new message to send.)

1. I get an error message saying: Cannot send message using the server ____. The SMTP connection to server _____ failed.
2. When I go to SMTP connection details, I get this: Trying to log in to this SMTP account failed. Verify that the username and password are correct. Also verify that the server supports MD5 Challenge-Response authentication. If it does not, choose an appropriate authentication setting in the Server Settings tab of the Account preferences.
3. So, I called my local ISP and talked to tech support. They told me to change the SMTP setting from MD5 Challenge-Response to Password. I did that, but when I tried to save my changes I got this...
4. I verified that the account name and password were indeed accurate. But, they would not be accepted. This exact process happened on my iPad and Mac Mini. So, I am stymied for now. Got to think this is an Apple issue. The local ISP tech guy said they had received a lot of calls from their customers with Apple products.

Ever since they did 18.2 update mail does not show up unless you hit one of the new tabs they put in the email folder it’s very frustrating as when you look at the app it shows no mail you have to go into each account and hit the tab for mail to show up.