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Fastmail

Fastmail hosts work inboxes, calendars and contacts. A business account can give each teammate a separate sign-in and use your own domain for addresses people share.

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Does everyone who answers mail need a mailbox?

A Fastmail user gets a login, mailbox and storage quota. If one person handles both sales@ and press@, use extra addresses called aliases so those messages can arrive in that person’s inbox. Create a user when someone needs a separate sign-in and private mail.

For an address that several people handle, use a shared alias and check which teammates can receive and send from it. If they need a common place to read messages, set up a shared folder and choose its permissions and read-state behavior. Shared folder messages count against the folder owner’s mail quota.

Can you use Fastmail and keep your website where it is?

Yes. Choose the mail-only setup if you already manage the website and DNS elsewhere. Fastmail’s setup shows the MX records that direct new messages to it and the records that help other services verify mail sent from your domain.

Add the domain in Fastmail’s setup, then prepare the users and addresses before switching the MX records. Keep the current website records and account access in place. If you’re moving existing mail, plan the copy before changing delivery.

How do you test the address without touching your domain?

Use an already approved test-only Fastmail account and an existing address on a Fastmail-owned domain. Use a second inbox you control at another service. Before sending, verify both exact addresses and confirm that forwards, rules and automatic replies stay within the test setup. Keep company DNS unchanged. If you can’t verify those conditions, use paper.

  1. Check where an alias receives
    If you already have an approved test alias, send a message with fictional text to it from the outside test inbox. Confirm which Fastmail inbox gets it. With no test alias, use the existing test mailbox address.
  2. Check what the outside reader sees
    Reply to the outside test inbox. If the test alias is already set up for sending, choose it as the From address and verify what appears at the other end. Use only the approved test recipient.
  3. Confirm who can see the message
    If you can add mail to an approved shared test folder, move only the fictional test message into it. Have the authorized test teammate open that folder from their own test account and find the message. Record which inbox received it, what From address appeared and who could see the shared copy.

When does a person need Standard instead of Basic?

Fastmail lets business accounts mix plans by user. Basic users can use the company domain when the account has an administrator on Standard or Professional. Use Standard or Professional for a user who needs to read their mail in an outside app such as Outlook or Thunderbird.

US business prices on November 11, 2026
PlanMonthly billing per user12 months prepaid per user
BasicUS$4US$36
StandardUS$6US$60
ProfessionalUS$10US$108

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How do you keep old mail when you switch providers?

Prepare the new users and aliases while your old provider still receives mail. Fastmail’s migration guide describes copying messages from the old mailboxes. Check a sample folder and attachment before switching delivery. Keep the old provider available, check both inboxes and copy late arrivals before you close it.

For a move out, use Fastmail’s mail export. It downloads one folder at a time, with up to 4 GB per export. Export contacts and calendars separately, record aliases and rules, and check what the new provider can open before closing the account.

Fastmail says its former Pobox customers moved to Fastmail in November 2024.