Hi, we are using Sabre DAV. Very stable and its performance depends on the performance of your webserver.
We are using Apache-MPM prefork. If your webserver can handle HTTP-requests for 10k users, it will handle CARDDAV/CALDAV-requests for that amount of users as well. If you are familiar with php-programming, you may extend Sabre DAV. Standard Sabre DAV has its own user database. We extended the SabreDAV authentication mechanism such that user-credentials are pulled from the same database that Dovecot is using. Peter Am Fr., 14. Okt. 2022 um 16:14 Uhr schrieb Marc <m...@f1-outsourcing.eu>: > > I hope it is ok to post this off-topic question here. I was wondering if > there are here environments running that offer next to dovecot also > calendar and contacts services. > In the past I was testing a bit with the one from Apple, but I think it is > being discontinued because of converting the python 2 code. > > I am looking for some experience with a setup provisioning >10k users. Not > that I have such requirement, but I want to know if the solution is stable, > efficient and optionally can scale. I need something efficient, because I > do not have to many resources and high iops available. > I also do not want any other other 'crap' just the cal (and card) dav > solution. > > https://github.com/1and1/cosmo > This looks interesting (used 1und1 in Germany?) but not big community > > https://sabre.io/dav/install/ > This is in php ... > > -- Peter Koch Passauer Strasse 32, 47249 Duisburg Tel.: 0172 2470263