What the Free plan includes
Every fact below is from our live FAQ and pricing page.
| Feature | Free | Paid plans |
|---|---|---|
| Domains | 1 | Unlimited |
| Business mailboxes | Up to 7 | Unlimited (each uses at least 1 GB of plan storage) |
| Storage | 7 GB shared | Pool per plan |
| Webmail and Mailbux apps | Yes | Yes |
| SMTP and JMAP | Yes | Yes |
| IMAP and POP3 (Outlook, Apple Mail, Thunderbird) | No | Yes |
| API access | No | Yes |
| "Sent via Mailbux" footer on outgoing mail | Yes | No |
| Migration tool | Yes | Yes |
| Two-factor authentication | Yes | Yes |
Each mailbox can send up to 300 messages per hour on every plan.
Your own domain, your own mailboxes, free to start.
Create a free accountHow to set up free email on your domain
You need a domain you own and access to its DNS settings at your registrar. Your website can stay where it is: you only change mail records.
Create a free Mailbux account
Sign up for the Free plan. No trial period and no end date.
Add your domain
In the dashboard, open Domains and add the domain you want to use, for example yourcompany.com.
Open the DNS setup
Go to Domains, then Open DNS setup. It shows the exact records for your domain.
Remove old MX records
At your registrar or DNS host, delete any MX records that point to another mail service or to the registrar parking or forwarding service.
Add the MX and SPF records
Add an MX record pointing to my.mailbux.com with priority 10, and a TXT record with v=spf1 include:msg25.com ~all. If you already have an SPF record, merge the include into it instead of adding a second one.
Optional: add DKIM
Optional: in your service (Manage), open DKIM and create the key. Then copy the DKIM TXT record shown in Domains > Open DNS setup to your DNS host. One DKIM record is enough. It is optional and improves deliverability.
Create your mailboxes
Create up to 7 business mailboxes, such as you@, info@ or [email protected].
Sign in and send
Use webmail or the Mailbux apps. DNS changes can take time to spread, so send a test message to and from another address once the records are live.
| Type | Host | Value | Priority | Note |
|---|---|---|---|---|
| MX | @ | my.mailbux.com | 10 | Required |
| TXT | @ | v=spf1 include:msg25.com ~all | Required (SPF). Only one SPF record per domain. | |
| TXT | Shown in Domains > Open DNS setup | Shown in Domains > Open DNS setup | DKIM. Optional, improves deliverability. Create the key first (Manage > DKIM); one DKIM record is enough. |
Bring your existing email with you
Our free migration tool copies your existing email from Gmail, Microsoft 365 or any other IMAP provider into Mailbux. It works on every plan, Free included.
Why use your own domain instead of a free Gmail address
- Trust: an address like [email protected] looks like a real business to customers.
- Your brand: every message promotes your company name, not an email provider.
- Control: you keep the domain, so you can add mailboxes for staff and keep the address if you change provider later.
New to domain email? Read how to get a free email address with your own domain, or compare options in our free business email account guide.
When a paid plan makes sense
Stay on Free as long as it fits. Consider a paid plan when you need any of these:
- More than 7 mailboxes or more than 1 domain
- Outlook, Apple Mail, Thunderbird or another desktop client over IMAP/POP3
- API access
- Outgoing mail without the "Sent via Mailbux" footer
See pricing for the paid plans.
Frequently asked questions
Is the Mailbux Free plan really free?
Yes. The Free plan is free forever, not a trial. It includes 1 domain, up to 7 business mailboxes, 7 GB of shared storage, webmail, the Mailbux apps and SMTP sending. Outgoing mail carries a small "Sent via Mailbux" footer.
Which DNS records do I need?
Two are required: an MX record pointing to my.mailbux.com with priority 10, and an SPF TXT record v=spf1 include:msg25.com ~all. DKIM is optional and improves deliverability: open your service with Manage, go to DKIM and create the key, then add the DKIM TXT record shown in Domains > Open DNS setup. One DKIM record is enough.
Can I use Outlook or Apple Mail on the Free plan?
No. Desktop clients such as Outlook, Apple Mail and Thunderbird connect over IMAP or POP3, which are available on paid plans. On Free you use webmail and the Mailbux apps.
Will my website stop working when I change MX records?
No. MX and SPF records only affect email. Your website records stay as they are.
Can I move my old emails to Mailbux for free?
Yes. The free migration tool copies email from Gmail, Microsoft 365 or any other IMAP provider, and it works on every plan, Free included.
Is there a sending limit?
Yes. Each mailbox can send up to 300 messages per hour on every plan. The limit is per mailbox, not per domain.
Where is my email stored?
Our servers are in the EU, US and Canada.
Last updated November 9, 2026