Hello davdroid, Seems like your user name / password is incorrect. Did you try as described on https://www.davdroid.com/tested-with/fastmail/? Did you use your full email address (without special characters like " " from copy/paste) as user name? Did you use the generated app password (without special characters like " " from copy/paste) as password? Is there any other way how we can help you? This is most probably not a DAVdroid problem.

@rfc2822 I’m not able to reproduce the problem now. All attempts to create calendar entries of different types are working. If the error repeats I’ll let you know. Thanks.

@erosion said in Fastmail/Thunderbird/Android Contacts Discrepancies after 'Copy Contacts' & Sync: As soon as there are 297 contacts in Fastmail, you don’t need the app anymore. I don’t understand what you’re talking about here, as my goal is to keep all 3 contact repositories in sync: I meant that you don’t need the “Copy Contacts” app anymore. Syncing between 3 places (one of them with DAVdroid) is a common use case. I’m syncing between Nextcloud / Evolution / DAVdroid myself. Everything works perfectly Happy that it now works for you. If there’s still a specific problem, just let us know.

Thanks for the feedback @rfc2822! I tried over 4G (previously I was using WiFi) without success, but now I can see that the FastMail return 401 Unauthorized for my user. Alternatively, I tried connecting to caldav.fastmail.com as they described in on their side, but that failed with 401, too. 1_1538329346455_fm-debug4-4G-caldav.fastmail.com.txt 0_1538329346455_fm-debug3-4G-fastmail.com.txt This looks more like a FastMail issue, or? Ignore what I wrote. I was missing a letter from the FastMail generated app password. My bad! It works now with the https://caldav.fastmail.com/dav/ url. Thank you!

@MrGutsy It should be possible to set up the account with the working connection (4G) and then sync over WiFi, too.

I’m actually using Thunderbird too, and there the issue does not show up. Nor does it via a plugin for outlook EDIT: i installed another CalDav receiver (aCalDav - https://f-droid.org/repository/browse/?fdid=de.we.acaldav) next to yours on my phone. Seems to not trigger these issues. I’d prefer to keep using yours, as it is a lot more refined, but right now, this bug is a showstopper for me.

Fixed in production - give it a go.

Working now! Thanks a lot Bron. Have a good rest.