The migration of business email to a new provider happens in three moments: the new system is activated, the existing mailboxes are copied and only at the end the domain's MX records are updated. For companies in Cantù and the province of Como, NewVisibility coordinates the whole move, from the map of mailboxes to the setup of every colleague's devices.
No, old emails are not lost if the messages are copied to the new system and checked before the old service is switched off. In Cantù, in the province of Como, NewVisibility checks folders and attachments together with companies in Como, Brianza and Milan before closing the move.
To move contacts and calendars, you export them from the old system in standard formats and import them into the new one, or sync them directly. NewVisibility, in Cantù (Como), also checks shared address books and recurring appointments for companies in Brianza, Milan and Lugano, so the office restarts without losses.
To switch from Gmail to business email, you create mailboxes on the company's domain, import the old messages and set up a temporary forward. NewVisibility, in Cantù, configures mailboxes protected by anti-virus and anti-spam for businesses in Como, Brianza, Milan and Canton Ticino.
To share a mailbox between colleagues, you can give several people access to the same mailbox or use an alias that forwards messages to several recipients. The choice depends on the team and the requests, also for companies in Como and Cantù: it is best to decide who replies.
A, CNAME and MX records are entries in the DNS zone: A links the domain to the server's address, CNAME creates an alias to another name, MX says where to deliver email. A mistake can block website or email: in Como and Brianza we check them from our Cantù office.