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Business OS · Business Email

[email protected], by tonight.

Domain, mailboxes, and the DNS records that keep you out of spam, set up in one day inside your Business Operating System. Google Workspace, Microsoft 365, or Zoho, pre-configured and connected to everything else you run here.

Same-day setup SPF · DKIM · DMARC Google · Microsoft · Zoho
SPFauthorized
DKIMsigned
DMARCenforced
MMercury BankWelcome, your business account is ready9:14 AM
FFile.BusinessYour Delaware annual report is filedMAR 12
IIRSEIN confirmation for Acme Ventures LLCMAR 8
DDomain registraracmeventures.com renewed for 1 yearMAR 1

The problem

Your invoice from a @gmail.com address just lost the deal.

Email is the first thing a customer, a bank, and a vendor check. A free address reads as a hobby, an unconfigured domain lands in spam, and a mailbox outside your operating system means retyping everything twice.

Credibility

Free addresses fail silent credit checks

Banks, processors, and enterprise procurement treat a custom-domain address as a baseline signal. A free address triggers extra review or quiet rejection.

A domain-matched address, live the same day you form the company.
Deliverability

No SPF, DKIM, DMARC? You're spam.

Receiving servers check three DNS records before trusting your mail. Most DIY setups skip them, and the invoice you sent sits in a junk folder for two weeks.

All three records configured and verified automatically at setup.
Disconnection

A mailbox outside your OS is another silo

State notices, bank alerts, and client threads pile up in an app that knows nothing about your entities, deadlines, or CRM.

Connected to your Unified Email Box, CRM, and BosAI from day one.

How it works

Four steps. You approve, the OS does the rest.

The same setup that runs in your dashboard, you pick the name, we write the records and wire the mail.

1

Search a domain

Available and consistent with your registered entity name, BosAI flags conflicts first.

2

Register & connect MX

Domain plus mail routing set up in one pass, no DNS console required.

3

SPF, DKIM, DMARC

The three deliverability records written and verified for you automatically.

4

Add your team

Mailboxes, aliases, and groups, everyone live on the domain the same day.

Your stack, your choice

Google, Microsoft, or Zoho, pre-configured either way.

We set up the provider your team already knows, with the records, aliases, and migration handled.

Google Workspace

For teams that live in Docs & Meet

Gmail on your domain with Drive, Docs, and Calendar attached.

  • Full inbox, contacts, and calendar migration
  • Groups and shared drives configured

Microsoft 365

For teams on Outlook, Word & Teams

Exchange mailboxes on your domain with the Office suite attached.

  • Exchange, Teams, and OneDrive provisioned
  • Desktop Outlook profiles ready to sign in

Zoho Mail

For lean teams that want simple & clean

A tidy, ad-free inbox on your domain at the lowest cost per seat.

  • Mailboxes, aliases, and forwarding set up
  • Lowest cost per seat of the three

Why File.Business

Email that's part of the business, not bolted on.

Because it's set up alongside your entity, domain, and phone, your inbox arrives already trusted, already connected, and already yours.

Deliverability, handled

SPF, DKIM, and DMARC written and verified, so your mail lands in the inbox, not the junk folder.

Same-day, no DNS console

You approve the domain; we do the records and routing. Live the day you form.

Connected to the OS

Wired into your Unified Inbox, CRM, and BosAI from day one.

Your provider, your data

Google, Microsoft, or Zoho under your own account, you own the mailboxes.

Same-day
setup on your domain
3
deliverability records, verified
3
providers, Google · MS · Zoho
4.9
from 8,200+ founders

Questions

Business email, answered.

What are SPF, DKIM, and DMARC, and why do they matter?
They're three DNS records that prove your mail is really from you. Receiving servers check them before trusting a message, so without them your legitimate email often lands in spam, and someone can more easily spoof your address. We configure and verify all three automatically, which is the single biggest reason business email from us reaches the inbox.
Do I need a domain first?
Yes, professional email runs on your own domain, like [email protected]. If you already have one, we set email up on it; if you don't, you can register one in the same flow and we'll wire the email to it. Either way you end up with a branded address, not a generic @gmail.
How many mailboxes and aliases do I get?
You can create a mailbox for each person on your team plus role addresses like hello@, billing@, or support@ as aliases that route where you want. As you add teammates in Team Accounts, provisioning their mailbox is part of the same step, so email grows with the company instead of being reconfigured each time.
Can you migrate my existing email?
Yes. We migrate your inbox, contacts, and calendar so nothing is lost in the move, and set up your team's mailboxes, aliases, and groups on the new domain. Your old mail keeps flowing during the switch, so there's no window where messages fall through the cracks.
Do I need to touch my DNS settings?
No. If your domain is with File.Business, we write the MX, SPF, DKIM, and DMARC records for you and verify them. If it's registered elsewhere, we hand you the exact records to paste, or set them up directly with your registrar, you never have to guess at DNS.
How long does setup take?
A new mailbox on a domain we manage is usually ready within the hour, once the records verify. Full migrations from another provider take longer depending on how much mail moves, but you're sending and receiving from your branded address quickly, the background transfer catches up without interrupting you.
How does it connect to the rest of the OS?
Your mailbox feeds the Unified Email Box and CRM, and BosAI can act on what arrives, draft replies, file forms, and log threads, without leaving the platform. Together with your domain and business phone, it's one connected business identity rather than four disconnected services.

Get started

Send from your own domain by tonight.

Pick a domain, choose your provider, and we'll configure the mailboxes and deliverability records, connected to the rest of your Business OS.

Start your business in the next 5 minutes.

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