My device (Samsung S24 Ultra SM-S928W, Android 16) auto updated this morning and emails stopped coming in. Reinstall didn't fix the issue and I wasn't able to get back into my mailbox. Rolled back to v1.4.2 and it's working fine. Anyone else?
I confirm that authorization fails after updating the Android app. Error message: An error occurred, please try again.
Where can I download version 1.4.2?
I got it from APKpure (use at your own risk). There are other versions available, but I wasn't able to install them on my phone.
I downgraded to 1.5.8 (Jan 25, 2026) and its working again, so whatever changed from 1.5.8 to 1.5.10 breaks the SSL process.
Note: I download from https://apkpure.com/carbonio-mail/com.zextras.iris/download/1.5.8_release and installed XAPK Installer to install it. (do this at your own risk)
How to troubleshoot when the mobile app will not allow you to configure and connect to your server.
1. Attempt from mobile app fails
2. Ran this command as root on my server and noticed this error.
/opt/zextras/log# tail -100 nginx.log
2026/02/15 13:38:07 [error] 4872#4872: *133 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: xx.xx.xx.xx, server: mail.your_server.net, request: "GET /zx/auth/supported HTTP/2.0", upstream: "http://127.78.0.1:20008/zx/auth/supported", host: "mail.your_server.net"
2026/02/15 13:38:10 [info] 4872#4872: *135 client closed connection while SSL handshaking, client: 127.0.0.1, server: 0.0.0.0:443
I hope Zextras will fix the bug and release 1.5.11+
Hippiecool
Same problem here.
The mobiles that got automatically upgraded stopped working on friday.
Mine was ok, but this morning when other uses told us they were having problems, after rechecking that in my mobile everything was working perfectly I uninstalled the app, downloaded and installed the new version and when I tried to log in: "An error occurred, please try again."
Thank you so much for any information about it.
Hi, since upgrade to 1.5.10, the app crash when try to download pdf join in the mail
Carbonio mail on android 16
Hi, I have the same problem, when the app autoupdate to ver. 1.5.10 cant login into my account. I hope that Zextras inmediatly release a new version that work. Thanks to all.
Version 1.6.1 of 16.02.2026. Error not fixed! SSL error present. 🙁
Updated from a working release (apkpure 1.5.7) to 1.6.1 and it's working
Same issue after I uninstall and try 1.6.1 again. If I uninstall 1.6.1, reinstall 1.5.7 and update to 1.6.1 it's working again.
Upgraded and nothing. Uninstalled and installed again the last version, and the error is still there ;(
Thanks in advance and have a great day
A new version (1.6.1 of 02/16/2026) fixes our problems
Thanks, @sharif! I tested 1.6.1 an write comment in this topic and it's not working, authentication error.