DavMail: iOS and UFT-8 characters = not good friends..? about davmail

[mguessan]

Answer to ps: probably an SWT related message, not related to encoding.

I don't really understand how a perfectly working with android/desktop Carddav encoding is broken with iOS, can you please provide additional details/log file content ?

[Exuskazera]

Good Morning,

thank you for replying.

I just know the log, which will be generated by DavMail itself and the debug-file by Android.
(Files are shorted, I just deleted the parts in the middle where DavMail was synchronizing my 1900+ contacts rofl. And I also changed some private/personal information

android_davmail.log
debug.txt
ios_davmail.log

If that's not enough, please come back to me.

Answer to Answer to ps: Yep, SWT related

[Exuskazera]

Update 06-02-2019:

Tried it with several versions of iOS from 8.2 to the newest, the problem is persistent. Logs surprisingly have the identical content, just different IPs and names and versions...

I'm baffled... Android doesn't have such problems. The only difference between those two is when they synchronize. Android seems to start with something else but does the same later on while iOS goes directly to the sync-stuff.

Anyone any ideas? Should I try to contact the apple-support?

Thanks for reading.

[mguessan]

You may want to try Apple support, as I don't see anything wrong in DavMail Carddav answer, both Content-Type header and XML body tell the client that content is indeed UTF-8 encoded.

[jstark1]

i think we have the same issue here. Exchange 2016 in premise Deployment and we use the davmail.properties:
davmail.enableEws=auto
davmail.url=https://..../owa

the latest working version is 4.8.6-2600. In later versions the contacts with umlauts gets scrambled. The calendar entries with umlauts are working fine.

[jstark1]

After some investigations https://stackoverflow.com/questions/13913157/correct-vcard-format-for-ios-devices and https://developer.apple.com/documentation/addressbook/abperson/1458755-init i assume Apple iOS did not support vCard Version 4.0 and the default is to fallback to Version 2.1.
I've created a fork of the project (https://github.com/jstark1/davmail) witch delivers a vCard Version 3.0 based on the Useragent "iOS/".

I have no other devices to test and the fork fixed the problem for me.

[mguessan]

Thanks for your feedback. I tried to fix this in trunk by disabling VCARD 4.0 and distribution lists with iOS clients. Can you please check this ?

[jstark1]

The trunk Version from 27 Oct works for me. Thanks for the fix.

[mguessan]

Thanks for your feedback.