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I am unable to download my mail using the native mail app after upgrading to IOS 18. I am getting the following error; “Network Error (POSIX 96)”
The mail configuration is on imap with SSL.
iPad Pro, iPadOS 18
The case finally landed in Cupertino! We have a case no. and the developer are in the process of analyzing the problem and implementing a solution. It is a bug that will be fixed in one of the next releases. As soon as I have news I will post them...
Same issue for me as well. I upgraded to 18.1.1 and getting POSIX 96 error??
apple support team - when will this be fixed?!?
I’m getting the same problem, but I had this problem way before IOS 18.
I have Hotmail as my main email account—have for decades. Lately, the mail app on my iPhone Willy Nilly decides my password is incorrect and stops receiving and sending mail. I use the same password I have been using since I changed it earlier this year and sometimes it gets my mail working and sometimes it doesn’t. Oddly enough, the mail app on my iPad doesn’t behave this way, logging on to Outlook via a browser to access my mail doesn’t have a problem—it’s just on my phone mail app. I’m at a loss as to how to fix this. Any help would be greatly appreciated.
I’m getting: Network Error POSIX 96
Update as of today. Contacted apple support. They asked me to reset my iPad to factory defaults. That didn’t work either. After more than two hours of trying they have said it will be raised to the engineering group and they will come back to me on Friday. I really don’t have very high hopes. The best I guess that could happen is that they recognise it as a bug in the app and fix it in the next iOS / iPadOS release.
Thank you for persevering with the case!
However, I find it strange that Apple is now looking at your iPhone individually in detail.
Has Apple still not realised that thousands of users worldwide have been experiencing these Apple Mail problems since the update to iOS 18? This is not an individual problem of a single iPhone! My German mail provider has also confirmed to me that it must be an Apple error. He rules out the possibility of a fault with himself or the phone provider. Best regards from Berlin!
So bad news. Apple support has come back to me saying there is nothing wrong with the app and that they cannot guide me with how to fix the issue on my mail server. Considering that there were no changes on the mail server and that my mail worked in 17.x just before I upgraded to 18 and stopped working post the 18 upgrade, it should be obvious to the meanest intelligence that the issue is with the mail app upgrade that was bundled with ios 18. All I see is to hope for them to see the light and fix the app in one of the upcoming releases.
For those of you who managed to fix the issue, would be glad to get some pointers on anything you changes on your mail servers to fix the issue. Please note I am using a mail server with a qmail based mailing system. Any pointers would be greatly appreciated.
I too had no issues with gmail. Deleting and recreating the mail account didn’t work for me.
“Same Problem for me - Support said the problem is known and seems to occur if you use your own domains”
Did they suggest a workaround pending a fix? This is a serious problem.
I have the same problem, but it occurred way before I downloaded IOS 18:
I have Hotmail as my main email account—have for decades. Lately, the mail app on my iPhone Willy Nilly decides my password is incorrect and stops receiving and sending mail. I use the same password I have been using since I changed it earlier this year and sometimes it gets my mail working and sometimes it doesn’t. Oddly enough, the mail app on my iPad doesn’t behave this way, logging on to Outlook via a browser to access my mail doesn’t have a problem—it’s just on my phone mail app. I’m at a loss as to how to fix this. Any help would be greatly appreciated.
I’m getting: Network Error POSIX 96
You are probably right. My point is if it was working prior to IOS18 upgrade and works post upgrade with other mail clients, doesn’t it mean that the issue is with the native mail client where the error is coming up.
PS - The issue persists post update to 18.0.1.
I am unable to download my mail using the native mail app after upgrading to IOS 18. I am getting the following error; “Unable to create a secure connection to the server ("bad certificate format -9.808).”
The mail configuration is on imap with SSL and TLS.
My fix was to go to IMAP server name a type over the greyed out forward slash following the server name.
I backed out of settings and shut down the iPhone, and then restarted it a minute later. After the phone rebooted I went to mail and pulled down the mail to refresh it from the server. After a few seconds (which I think was the IMAP server resyncing with my mailbox, all my mail for the last few days came down. After two days it is behaving as it should with new mail appearing when it should. I note that this problem was not evident in my iPad which is iOS 17.x and not on my M2 MacBook Pro, nor on my partner’s iPad with iOS 18.1. I can only conclude that Apple can solve the mystery of this and the other issues with email that can’t be solved with this fix.
riyeau wrote:
I was having the same issue all day on the Mail iOS app with both of my Gmail accounts. I then realized I was connected to a VPN on my phone so I disconnected it and it immediately fixed the email issues!
Glad you got the problem fixed. I don't use VPN on my own phone, so there must be another issue.
I am still monitoring this thread and the pain it is causing users. I had the same issue with my iPhone SE using iOS 18.2. After trying a number of suggestions, I found that ensuring I had a backslash after my IMAP server details my Apple mail worked fine. Two days later, no mail was coming through so I checked and found that the IMAP backslash was greyed out again so I typed it in again and rebooted. A week later, my email is still working fine. As a comment, I note that a user has experienced mail issues when using a VPN. I use one on the phone to hotspot to my iPad and laptops and assumed it was still on during this email debacle. I have just checked and saw VPN was off. I again set it to ON and rebooted, only to find it automatically switched itself off. Perhaps that’s why my mail is still working OK with the IMAP backslash in place? For what it is worth, it would appear that iPhone iOS from 18.0 to 18.2 all have the same issue - whatever the cause. Hope this feedback is helpful.
My iPhones started downloading e-mail once I logged off Norton's VPN
https://doc.dovecot.org/2.3/configuration_manual/namespace/
In my case (Debian), it's in /etc/dovecot/conf.d/10-mail.conf, look for 'namespace inbox'
Error in downloading mail on IMAP after ios 18 upgrade
