I have the same problem. I am running z-push 2.6.4 and connecting to it via iOS 16 and also the Windows 10 mail client for confirmation.
I am pretty confident that an older version of z-push did not exhibit that behaviour.
The debug log clearly indicates that z-push can see all IMAP folders but for some reason the clients connecting to it can only see the inbox and one level below that.

@danir-de
Fixed for me! How?:
I found multiple unrelated issues that each didn’t directly have to do with Z-Push with debugging via the LOGLEVEL_WBXML loglevel.
It’s very verbose but also very helpful - seems the issue was related to the users login identifier not matching with the actual caldav principal name with one of our test users, we had other errors with other users as well, but those can be identified and troubleshooted easily with the debug logs.

@aubergine
I use the full email address when configuring on the iphone. But when the account is verified by the backend the full email account name is overwriten on the iphone and replaced just with the user name. That in turn leads to an error when sending mail. This used to work with previous iOS versions. And using the full email address for account definition on the backend server is not an option for me.

@msladek
All of your employees in company A are working in the same addressbook?
Read and write?
No personal contacts?

What is your username like - username@domain or just a username without domain?

This is not possible at the moment.

Yes, I have.
Fixed some things with ZP-1571, still waiting for a merge…

I forked on GitHub, I’ve been waiting long enough and I am sick of piecing all the different branches together.

If my pull requests get attention again, I will contribute again.

It appears the problem is with Outlook (go figure). The first time I open Outlook after creating a new profile I can see the Device ID in my Apache logs:

x.x.x.x - xxxxx@xxxxxxxxxx [30/Dec/2021:01:23:43 +0000] "POST /Microsoft-Server-ActiveSync?Cmd=FolderSync&User=xxxxx@xxxxxxxxxx&DeviceId=EFB9B5DDB53843B5AA865100AA459178&DeviceType=WindowsOutlook15 HTTP/1.1" 200 498

However, if I close Outlook and re-open it, I see a different Device ID in my Apache logs:

x.x.x.x - xxxxx@xxxxxxxxxx [30/Dec/2021:01:30:18 +0000] "POST /Microsoft-Server-ActiveSync?Cmd=FolderSync&User=xxxxx@xxxxxxxxxx&DeviceId=E429C4ACF36A4108AFF029F8D3C503EF&DeviceType=WindowsOutlook15 HTTP/1.1" 200 13

I found that the Device ID is stored in the Windows registry at:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\{profile_name}\9375CFF0413111d3B88A00104B2A6676\00000002\EAS DeviceId

If I change the Device ID in the registry back to the original one, everything works. Has anyone else run into this?? Outlook does not save the Device ID in the registry after the initial sync. The next time I open Outlook, it creates a new Device ID and stores it in the above key. I am using Outlook Version 2111 Build 16.0.14701.20254

Hey Can you show the complete modified files?
I want to use z-Push with DSM 7 and contacts and calendar.

Ok this is weird now. I thought I give it another try with Z-Push debugging on. Didn’t try Z-Push debugging since I saw no error message in the backends (Dovecot/Z-Push).

I cannot reproduce the issue anymore. Even after disabling debugging again it is still working with IPv6 AND IPv4 on.

So strange, I didn’t change anything since my last try several days ago. Even my external public IPs are the same. It must be an error in the iOS Mail app.

I will monitor it for a couple of days.

@bob4os Does not change a thing. What is really frustrating is that it is working for some entries like sarahs but not for Petras. I am not sure if this is related to some of these error messages above.
The problem is that i have way to many of these error messages and need to get rid of some of them to point problems to specific error messages. I started by tracking down some of these but it really takes a lot of time to link a problem to a specific mail or calendar entry.

I’m having the same issue … the policies file seems fine, and I inspected the code and made sure it’s referring to the correct file … any suggestions please :(

I’m use the latest final stable code from git

This thread is also crucial: https://forum.kopano.io/topic/1634/centos7-no-matter-what-i-get-access-denied-please-send-authorisation-information/5?_=1631478031707

@fbartels Thanks for the quick reply. In case it helps anyone else, I discovered that the autodiscover POST request coming from Outlook contains the following data:

<AcceptableResponseSchema> http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a </AcceptableResponseSchema>

So you are right, it only accepts an outlook response and not a mobilesync response. That is very unfortunate.

I have some open tickets there on a variety of issues I want to improve Z-Push.
But I am no professional developer and I am doing this mostly in my free time.

@bob4os

no error message, just the info that the connection was closed…

Jun 13 13:31:22 imap(maedball)<1392295><MuoAEaTE3r0AAAAAAAAAAAAAAAAAAAAB>: Info: Connection closed (No commands sent) in=0 out=400 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Jun 13 13:31:24 imap-login: Info: Login: user=<maedball>, method=PLAIN, rip=::1, lip=::1, mpid=1392755, TLS, session=<nkutFKTEuL4AAAAAAAAAAAAAAAAAAAAB>