Microsoft 365 is not automatically backed up
This surprises people, so it is worth stating plainly. Microsoft keeps your mail highly available. It is very
unlikely to be lost because a server failed. That is not the same as backup.
What it does not fully protect you from is deletion: someone clearing a mailbox, a departing employee
taking their folders down with them, an account compromised and emptied, or a mistake nobody notices for
weeks. Retention windows exist, but they are shorter than most people assume and they run out quietly.
So we put a separate backup behind it. It is the difference between an awkward morning and a genuinely bad
one, and the cost of finding out the hard way is not comparable to the cost of having it.
Migrations, and why they go wrong
Moving email is one of the more visible pieces of work a business goes through, because everybody notices
immediately if it is done badly. The failures are consistent: mail arriving in two places at once, folder
structures flattened, calendars and shared mailboxes forgotten, or a cutover done at a time that maximises
disruption.
The way to avoid all of that is unglamorous: find out what actually exists first, including the
mailboxes nobody mentioned, move the history before the cutover rather than after, and switch over when
it suits your working week. It is not clever, it is just done carefully.
Getting your mail delivered
The other half of email is being trusted by the people you send to. Mail providers now check whether a
message really came from who it claims to, using records published on your domain. If those are missing or
wrong, your legitimate mail lands in junk folders, and it becomes easier for someone else to send
convincing mail pretending to be you.
We set those records up as part of the service and because we also manage the domain and its DNS, they get
maintained when things change rather than being configured once and forgotten, which is where they
usually drift out of date. Filtering and account protection sit under
security; the records themselves live in
domain management.