István,
One might think this obvious for a list hosted by Fastmail, but have you considered Fastmail? While Fastmail are based in Melbourne, Australia, their servers are in various locations. The other I would immediately think of is KolabNow, based in the EU. Both are built upon Cyrus. Fastmail is the lead developer of Cyrus, and has been for several years. Kolab is also a major contributor to Cyrus.
The Fastmail option, (disclaimer: I do not use Fastmail, but have spent time in their offices, working on Cyrus documentation, and think they're all great folks) employs JMAP, capabilities which they built into Cyrus in order to provide a more responsive user experience, and they have great web and phone apps. I haven't worked with KolabNow, so cannot speak to that experience.
Cheers,
-nic
On 6/12/22 10:26, Pongrácz István
wrote:
Hi,We run our own email server in-house for more than a decade now, started with ClearOS 5.2, it's about 1.2TByte email.
Nowadays we will migrate to higher version of ClearOS with separate cyrus 3.6.x imap, our tests seems fine with 3.6 (squatter works fine) etc.But.We also try to find a viable hosted email platform, which could provide at least the following key properties:
- shared imap folders with ACL (obviously)
- sieve scripts
- imap heavy usage, all emails are on the server
- preferably EU vendor
Limits:
- no M$ o365
- no Google
Personally I just start to gather information about the potential solutions, but I did not really convinced yet.I mean, every provider have imap, spamfilter, user/white/blacklist management, support desktop/web/mobile clients (imap, what is the magic anyway) etc. standard features, price and other limits could differ of course.One potential candidate is Zimbra, which is not really my personal favorite but seems it can share folders between users.Thank you, I continue my own research too, I will keep you updated (or just let me know to forgot it :)- István
-- Nic Bernstein nic@xxxxxxxxxxxxxxxx https://www.nicbernstein.com https://www.linkedin.com/in/nic-b-26577a178/
