Hi!

I'm looking for an alternative to Google Workspace for a small business.

Currently we have 3 workspace accounts. We need 8 more email accounts under our domain but with it being €6,90 a month per account that's already €75,90 a month.

I think we'll just hire some mail server to host the mail but I'm looking for a selfhosted solution for everything else (including a webmail client).

I found nextcloud which seemed promising, but the mail client in it is not good (and the mobile layout isn't good either; it integrates well on Android through WebDAV though). The snappymail and roundcube integrations don't cut it either. I also don't like that calendar invitations are all sent out from the same email address for all users, with only the reply-to address being different.

Zimbra seems good but it's also a mailserver in itself, which I don't want to host myself.

We have at least the following specific requirements:

-Good modern layout
-Proper text editor for mails
-Scheduling a time to send an email
-Adding signatures to emails
-Email templates

-Calendars with shared write access
-Calendar syncable to phones and other applications
-Calendar invitations sent from the user's email (also when being made on a phone)

-Contacts

-Creating and sharing forms (alternative for Google forms)

-File sharing feature would be nice to have but not necessary

-Everything accessible from one place (email, calendar, contacts, etc.)