Error in downloading mail on IMAP after ios 18 upgrade

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If you ever get them on the phone explain it to the rep, but don't let them put you off. Have it expedited and keep it going until then can either fix while you are on the phone or give you a timeline on when it is going to get fixed.

The same…. I can’t understand why this issue is still not resolved by apple….

same issue here. Very slow response

from Apple

Me too. And how do I fix it when I cannot access internet? Over to you Apple. If no quick fix, I fear you will lose very many customers. Your lack of response and lack of a fix is unacceptable.

Hi all,

I have the same problem (Network error POSIX 96). The emails do not download and refresh correctly through the native Mail app. Sometimes, they do download but I am unable to open the content of the email. I have contacted the local provider of my email and I have been informed that the issue is on Apple side. When will this be fixed? This is a serious issue. :(

There are 2 error i have notice in my dovecot setup while my iPhone Mail app given POSIX 96 error.

First time dovecot given the error "imap-postlogin: Error: ERROR 145 (HY000) at line 1: Table './last_login/lastauth' is marked as crashed and should be repaired", that is have fixed by repairing that table in mysql.

Second time dovecot given the error "imap(......@..........in): Error: mmap() failed with file /var/vmail/vmail1/..../Maildir/dovecot.index.cache: Cannot allocate memory". For this error i have increased default_vsz_limit from 256M to 512M.

Overall My Understanding is Dovecot having any error in it plugin apart from IMAP protocol, other clients are ignoring it, where us the latest Mail app throwing the error in client side. So blaming iOS18 or new Mail app is not good.

May be i can help you to fix if you share the truncated logs while accessing Mail app to your server.

I probably should NOT have purchased a new iPad… everything was working fine on the previous iPad, and still work fine on my iPhone, iMac and MacBookPro…

Apple, please debug before selling? Quality is steadily decreasing with time…

Yes, this has to be an iOS 18 issue. My MacBook Pro and Mac mini can access e-mail without a problem, but my iPhone 12 and partner's iPhone 16 (just purchased last week) aren't showing recent e-mails.

I have the same problem with my email, French internet access supplier, Free. It’s impossible to send email: Network error: (posik 96) It’s only with IPhone on IOS 18, not before, and not with my IPad or Mac. Apple Store wasn’t able to fix the problem. And it’s impossible to change for IOS 17. Then I can’t send email with my iPhone. When Apple will fix this bug??

I have exactly the same problem.

Tried to fix this, not sure but it might have to do with the certificates being self signed with dovecot.

Sending emails is possible in iOS18, only receiving en viewing the imap mail content is not possible in iOS18 in combination with dovecot.

I hope they fix this because this is one of the most essential functions of the device.

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.

refer my reply

Error in downloading mail on IMAP after i… - Apple Community

for your information. I had the same issue what is discussed here in my old dovcot setup while i was moving to iOS18, and i got its fixed by solving the issues in my dovecot settings.