Email Setup Wizard

Fastmail + Hostinger

Set up Fastmail email on Hostinger

The records Fastmail needs, written with the field names Hostinger uses (Name, Mail server, TXT value, Content), in the order to add them.

  • 4 steps
  • 7 DNS records
  • Sources checked October 21, 2026

Before you start

  1. Have your Fastmail account ready. Some values are unique to your account and come from the Fastmail Settings.
  2. Open DNS at Hostinger: In hPanel, go to Domains and click Manage next to your domain. Open DNS / Nameservers on the left. Use the Manage DNS records section.
  3. Keep both tabs open and add the records below one at a time.

Records to add

Copy each value with the button next to it. Rows marked “Copy from Fastmail Settings” are unique to your account.

MX records Where incoming email goes Type MX Name @ Value in1-smtp.messagingengine.com Priority 10 TTL 14400 seconds (4 hours)
MX records Where incoming email goes Type MX Name @ Value in2-smtp.messagingengine.com Priority 20 TTL 14400 seconds (4 hours)
SPF record Which servers may send as you Type TXT Name @ Value v=spf1 include:spf.messagingengine.com ?all Priority n/a TTL 14400 seconds (4 hours)
DKIM A signature on every message Type CNAME Name fm1._domainkey Value fm1.yourdomain.com.dkim.fmhosted.com Priority n/a TTL 14400 seconds (4 hours)
DKIM A signature on every message Type CNAME Name fm2._domainkey Value fm2.yourdomain.com.dkim.fmhosted.com Priority n/a TTL 14400 seconds (4 hours)
DKIM A signature on every message Type CNAME Name fm3._domainkey Value fm3.yourdomain.com.dkim.fmhosted.com Priority n/a TTL 14400 seconds (4 hours)
DMARC record What to do with fakes · recommended Type TXT Name _dmarc Value v=DMARC1; p=none; Priority n/a TTL 14400 seconds (4 hours)

Step by step in Hostinger

Point your MX records

MX records tell every other mail server where to deliver email for your domain. They must point to your provider and nowhere else.

Type
MX
Name
@
Priority
10
Mail server
in1-smtp.messagingengine.com
Type
MX
Name
@
Priority
20
Mail server
in2-smtp.messagingengine.com

In Hostinger

  1. In Manage DNS records, choose MX as the type.
  2. Enter @ as the Name, your provider's mail server, and the Priority. Keep the default TTL unless your provider asks otherwise.
  3. Click Add Record.
  4. Repeat for each MX record above.

Add the SPF record

SPF is a TXT record that lists the services allowed to send email from your domain, so receivers can spot forgeries.

Type
TXT
Name
@
TXT value
v=spf1 include:spf.messagingengine.com ?all
  • This is the exact value from Fastmail's manual DNS guide, which ends in ?all (neutral).

In Hostinger

  1. In Manage DNS records, choose TXT as the type.
  2. Enter the Name (@ for the root, or only the prefix such as _dmarc) and the TXT value.
  3. Click Add Record.

Set up DKIM

DKIM publishes a public key so receivers can confirm your messages really came from you and were not changed on the way.

Type
CNAME
Name
fm1._domainkey
Content
fm1.yourdomain.com.dkim.fmhosted.com
Type
CNAME
Name
fm2._domainkey
Content
fm2.yourdomain.com.dkim.fmhosted.com
Type
CNAME
Name
fm3._domainkey
Content
fm3.yourdomain.com.dkim.fmhosted.com

In Hostinger

  1. In Manage DNS records, choose CNAME as the type.
  2. Enter the name (only the prefix) and the content your provider gives you.
  3. Click Add Record.
  4. Repeat for each CNAME record above.

Add the DMARC record (recommended)

DMARC tells receivers what to do with mail that fails SPF and DKIM, and where to send reports about it.

Type
TXT
Name
_dmarc
TXT value
v=DMARC1; p=none;

In Hostinger

  1. In Manage DNS records, choose TXT as the type.
  2. Enter the Name (@ for the root, or only the prefix such as _dmarc) and the TXT value.
  3. Click Add Record.

Check your setup

Once the records are saved, run a live check. We look up your domain in public DNS and tell you what is right, missing or wrong, with the fix in Hostinger’s words.

We only read public DNS records. Nothing is stored.

Common mistakes with Fastmail on Hostinger

Adding fewer than three DKIM records

Fastmail signs with three selectors (fm1, fm2, fm3). All three CNAMEs are required.

Adding a second SPF record

Only one record may start with v=spf1. Merge Fastmail's include into the existing one.

Hostinger: Delete Hostinger Email's MX records

If the domain was set up for Hostinger Email, the zone contains MX records for mx1.hostinger.com and mx2.hostinger.com. Delete them before adding another provider's MX records.

Hostinger: Clear out old email records

Hostinger recommends removing any existing MX, SPF, DKIM and DMARC records that point to other email services, because conflicting records cause delivery problems.

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Tell us your domain and we will add and verify every record for Fastmail on Hostinger, then send you the check results.

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Fastmail on Hostinger: questions

Where do I add Fastmail DNS records in Hostinger?

In hPanel, go to Domains and click Manage next to your domain. Open DNS / Nameservers on the left. Use the Manage DNS records section. Add each record there, one at a time.

What goes in the Name field at Hostinger?

Enter @ for records on your bare domain, such as MX and SPF. For the others, enter only the part before your domain, for example fm1._domainkey. Hostinger adds your domain automatically.

Do I need to delete my existing MX records at Hostinger?

Yes. Mail servers deliver to every MX record you publish, so keep only the Fastmail MX records and delete the rest. If the domain was set up for Hostinger Email, the zone contains MX records for mx1.hostinger.com and mx2.hostinger.com. Delete them before adding another provider's MX records. Hostinger recommends removing any existing MX, SPF, DKIM and DMARC records that point to other email services, because conflicting records cause delivery problems.

Where do I get my Fastmail DKIM record?

Fastmail DKIM records are CNAME records whose value includes your domain, for example fm1.yourdomain.com.dkim.fmhosted.com. Copy the exact values for your domain from the table on this page.

How long until Fastmail email works on Hostinger?

Hostinger says DNS changes can take up to 24 hours to fully propagate.

Sources

Every value and step on this page comes from these official pages. Dashboards change, so if something doesn’t match what you see, tell us.

Fastmail on other hosts

Other email providers on Hostinger