Compared
MailDock vs Microsoft 365
Microsoft’s hosted suite, with Exchange Online underneath the mail.
The same trade as Google, with more of it: if your organisation already lives in Teams, SharePoint and Entra, moving mail out of that is a bigger decision than the mail itself. Pick MailDock when mail is the only part you actually use.
What Microsoft 365 does better
- Exchange is deeply integrated with everything else Microsoft sells, and if you use that, it matters more than mail does.
- Calendar, Teams, SharePoint, and identity through Entra, all in one place.
- Outlook, and every feature Outlook has that no IMAP client implements.
- You run nothing, and deliverability is theirs.
Where MailDock fits better
- Per-server rather than per-user pricing.
- No suite you are paying for and not using.
- Your mail is on your machine, and the format on disk is standard Maildir.
- Calendar and contacts are not served at all. MailDock is a mail server, and we would rather say so than imply a suite.
Side by side
Shape, not price. Theirs changes without telling us, and a page quoting it would be wrong the week after — check their site.
| Microsoft 365 | MailDock | |
|---|---|---|
| Where mail lives | Microsoft’s infrastructure | On a machine you rent and control |
| What you pay for | Per user, per month | One server, per year, whatever the mailbox count inside your tier |
| Identity | Entra ID, and everything wired to it | Its own accounts, with TOTP and app passwords |
| Calendar & contacts UI | Outlook | Not served — mail only |
| Beyond mail | A full suite | Mail only |
| Getting out | Export, and IMAP | IMAP, and the Maildir on your own disk |