Hello, It seems to me like a Mailcow issue. You should open an issue there -> https://github.com/mailcow/mailcow-dockerized/issues And you can tag me @QHivert so I could help them if needed
Cheers, -- Quentin Hivert || Alinto || R&D Lead Developer 19 Quai Perrache 69002 Lyon <http://www.alinto.com> www.alinto.com From: [email protected] <[email protected]> On Behalf Of Felix Oberst Sent: vendredi 28 novembre 2025 09:56 To: [email protected] Subject: Re: [SOGo] Calendar subscription fails occasionally Hello again, deactivating and activating users is only a temporary solution.. After some time it's the same again: "warning no possible subscription". Some users are affected significantly more often, but I couldn't identify a pattern. Greetings, Felix On 11/27/2025 10:30 AM, Felix Oberst ( <mailto:[email protected]> [email protected]) wrote: Hello, I can confirm the bug but found a solution: - Login with admin account - edit the users mailbox in <https://XXX.com/admin/mailbox> https://XXX.com/admin/mailbox - set the users account to "inactive" - set the users account to active again -> you can subscribe users calendars again (if they are shared of course) A full profile of the user reset didn't work. Only deactivating and activating is the solution. Greetings, Felix On 11/18/2025 2:36 PM, Jürgen Breitlow ( <mailto:[email protected]> [email protected]) wrote: Hello, We are running a Mailcow/Sogo server (v. 5.12.3). When I try to subscribe to some calendars I get "no possible subscription". When I push the subscription from the other side it works. So it does not seem to be a access rights problem. Any ideas? Thanks Jürgen -- Felix Oberst IT +49 391 544 563 2080 Thorsis Technologies GmbH Oststr. 18 39114 Magdeburg T+49 391 544 563 1000 <https://www.thorsis.com> https://www.thorsis.com Sitz der Gesellschaft: Magdeburg Amtsgericht Stendal HRB 30646 Geschäftsführer: Dipl.-Inf. Michael Huschke
