Deliverability Guide
Business email has one metric, and it is whether the message lands
Every mailbox provider claims delivery; almost none of them let you measure it — so this page is about the three DNS records that decide it and how to test the result yourself.
The short answer
Mailboxes on your own domain bundled with the hosting plan, or the standalone Email Hosting product at $2.99 a month where the website lives elsewhere: up to ten mailboxes at 10 GB each, webmail plus IMAP, POP and SMTP, and SPF, DKIM and DMARC configured for you.
The reason to care about that last clause is that everything else in email hosting is commodity. Storage is cheap and protocols are standard. What separates providers is whether your outbound mail is authenticated properly, because that is what the receiving server checks before deciding where your quotation lands.
By the HostingFast team · Reviewed 12 August 2026
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Estimates arriving from free webmail addresses are measurably discounted by the people receiving them, which makes a domain-based address the cheapest credibility a small firm ever buys. That much is well established.
What is less well known is that moving to your own domain can make delivery worse if the DNS is left half-configured. A domain with no SPF record and no DKIM signature is exactly the profile a spam filter treats with suspicion, so the move has to be done properly to pay off.
The three records that decide where your mail lands
All three are DNS entries on your domain, and all three are configured for you here. Knowing what each does is what lets you check the work:
SPF names the servers permitted to send as your domain. A receiving server looks it up and treats mail from anywhere else with suspicion.
DKIM signs each outgoing message with a private key so the recipient can verify the message really came from your domain and was not altered on the way.
DMARC tells receiving servers what to do when SPF or DKIM fails, and — the useful part — where to send the reports. Those reports are how you discover that a booking system has been sending as your domain for months.
How to test delivery rather than assume it
Send a message from the new mailbox to an address on a large consumer provider and open the raw headers. You are looking for three lines: spf=pass, dkim=pass and dmarc=pass. Anything else is a configuration job, not bad luck.
Then test the direction that matters commercially. Submit your own website's contact form from an outside address and check where it lands, because form mail is generated by the server rather than by your mail client and often fails independently of everything else.
Outbound mail here goes through MailChannels, which is what keeps a shared platform's sending reputation acceptable to the large mailbox providers. That is infrastructure you would otherwise have to buy separately.
The mailbox specification, and when hosting alone is enough
Standalone Email Hosting is $2.99 a month: up to ten mailboxes at 10 GB each, webmail in any browser, IMAP, POP and SMTP for any client, unlimited aliases and forwarding, autoresponders, a catch-all, shared calendars and contacts, and spam and virus filtering before anything reaches you.
If you already buy web hosting from us, you do not need it — mailboxes on your own domain come with the hosting plans. The standalone product exists for the other case: the website is somewhere else, or has not been built yet, but the professional address is needed now.
Ten gigabytes per mailbox holds years of attachments, which matters because forcing a clear-out on a busy person is how mail archives get lost.
Moving existing mail without losing a message
An IMAP transfer copies every folder and every message into the new mailboxes intact, and we run it alongside you. Your current address keeps working the entire time, because the MX records are only changed once the copy has been verified.
Check the company before you hand over the mail: HostingFast is a trading name of Vitalcare at Home Ltd, registered in England and Wales, with terms under English law. Email is the account that recovers all your other accounts, so it is worth the search.

The part of email hosting nobody advertises
Providers advertise mailbox size, which is the cheapest thing in the product. Authentication and sending reputation are the expensive parts, and they are the ones that decide whether the message arrives.
Backups run daily on every plan, and restoring a file or a database is one click in the panel rather than a ticket.
- SPF, DKIM and DMARC configured for you
- MailChannels handling outbound delivery
- IMAP transfer of your existing mail, run with you
- Renewal charged at the order rate
Why HostingFast
Standard on every plan
Authentication set up, not left to you
SPF, DKIM and DMARC records configured on the domain, which is the difference between the inbox and the junk folder.
MailChannels on outbound
Sending reputation handled at the platform level, so one bad neighbour does not decide where your invoices land.
Ten mailboxes, 10 GB each
$2.99 a month for the standalone product, with webmail plus IMAP, POP and SMTP on every one.
Filtering before it reaches you
Spam and virus screening runs in front of every mailbox, tuned to catch junk without eating a purchase order.
A provider you can look up
Vitalcare at Home Ltd, registered in England and Wales — check it before anyone holds the mailbox that recovers every other account.
Mail included with hosting
If you buy a hosting plan here, mailboxes on your own domain come with it rather than appearing as an extra line.
Quick Start
From order to online
- 1
Read the headers of a test message
Send to a large consumer provider, open the raw source, and look for spf=pass, dkim=pass and dmarc=pass. Three passes means the domain is configured correctly.
- 2
Test the contact form separately
Form mail is generated by the server, not by your mail client, and fails on its own. Submit the live form from an outside address and confirm where it lands.
- 3
Copy the archive before you move the MX
IMAP transfer first, verification second, DNS change last. Done in that order nothing is in flight when the switch happens.
Built In
Loaded onto every plan
- SPF, DKIM and DMARC records configured for your domain
- MailChannels handling outbound delivery to the large mailbox providers
- Up to ten mailboxes at 10 GB each on the standalone plan
- Webmail in any browser plus IMAP, POP and SMTP for any client
- Spam and virus screening running in front of every mailbox
- Unlimited aliases, forwarders, autoresponders and a catch-all address
- Shared calendars and contacts across the team
- Free migration of your existing mail from any provider, over IMAP
- Webmail secured by SSL that renews itself automatically
- Human support on duty every hour of every day
Frequently Asked
What people ask us most often
How do I prove my business email is authenticated?
Send a message to an address on a large consumer provider, open the raw headers and read the Authentication-Results line. You want spf=pass, dkim=pass and dmarc=pass. Those three records are configured for you here, and thirty seconds with the headers is how you confirm it rather than assume it.
Why did my mail get worse after moving to my own domain?
Almost always because the DNS was left half-finished. A domain sending mail with no SPF record and no DKIM signature is the exact profile filters distrust, so a correctly configured cheap provider beats a badly configured expensive one. Publishing all three records fixes it, and they are set up as part of the move here.
Do I need this if I already buy web hosting?
Generally no. Mailboxes on your own domain come with our hosting plans, with webmail, IMAP, POP and SMTP already switched on. The standalone Email Hosting product at $2.99 a month exists for the other situation: the website is with another provider, or is not built yet, and the address is needed now.
Will my existing mail archive survive the move?
All of it. An IMAP transfer copies every folder and every message intact, and we run it alongside you. Your current address keeps receiving throughout, because the MX records are only changed after the copy has been verified — so nothing is ever in flight during the switch.
Keep reading
Shared vs VPS Hosting
The resource ceilings that say when a growing site has genuinely outgrown a shared allocation.
Let's Encrypt vs Paid SSL
What a paid certificate buys that the free one does not, judged on procurement rather than encryption.
How to Set Up Email in Outlook
The connection settings in order, with the port and encryption mistake people hit first.
Email Hosting
Ten mailboxes on your own domain at 10 GB each, with SPF, DKIM and DMARC configured for you.
Domain Names
The name the mail is sent from — registered or transferred, first year free with annual hosting.
Changing hosts? Run through our checklist first.
A straightforward sequence for a switch your visitors never feel: which files move first, how to shift email across without losing a single message, the right moment to repoint DNS, and the two mistakes behind almost all the downtime we get asked to rescue.
Send from your own name, and land.
SPF, DKIM and DMARC configured, MailChannels on outbound, free IMAP migration and a renewal figure that never moves.
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