Email Setup Wizard

Fastmail + Name.com

Set up Fastmail email on Name.com

The records Fastmail needs, written with the field names Name.com uses (Host, Answer), 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 Name.com: Log in to name.com and click MY DOMAINS (top right). Click your domain, then Manage DNS Records.
  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 Host Leave empty Value in1-smtp.messagingengine.com Priority 10 TTL 300
MX records Where incoming email goes Type MX Host Leave empty Value in2-smtp.messagingengine.com Priority 20 TTL 300
SPF record Which servers may send as you Type TXT Host Leave empty Value v=spf1 include:spf.messagingengine.com ?all Priority n/a TTL 300
DKIM A signature on every message Type CNAME Host fm1._domainkey Value fm1.yourdomain.com.dkim.fmhosted.com Priority n/a TTL 300
DKIM A signature on every message Type CNAME Host fm2._domainkey Value fm2.yourdomain.com.dkim.fmhosted.com Priority n/a TTL 300
DKIM A signature on every message Type CNAME Host fm3._domainkey Value fm3.yourdomain.com.dkim.fmhosted.com Priority n/a TTL 300
DMARC record What to do with fakes · recommended Type TXT Host _dmarc Value v=DMARC1; p=none; Priority n/a TTL 300

Step by step in Name.com

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
Host
Leave this field empty
Priority
10
Answer
in1-smtp.messagingengine.com
Type
MX
Host
Leave this field empty
Priority
20
Answer
in2-smtp.messagingengine.com

In Name.com

  1. Select MX from the Type drop-down menu.
  2. Leave Host blank, enter the mail server in Answer, leave TTL at 300, and enter the Priority (10, 20, 30 for several).
  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
Host
Leave this field empty
Answer
v=spf1 include:spf.messagingengine.com ?all
  • This is the exact value from Fastmail's manual DNS guide, which ends in ?all (neutral).

In Name.com

  1. Select TXT from the Type drop-down menu.
  2. Enter a Host only if your provider gives one, and paste the value in Answer.
  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
Host
fm1._domainkey
Answer
fm1.yourdomain.com.dkim.fmhosted.com
Type
CNAME
Host
fm2._domainkey
Answer
fm2.yourdomain.com.dkim.fmhosted.com
Type
CNAME
Host
fm3._domainkey
Answer
fm3.yourdomain.com.dkim.fmhosted.com

In Name.com

  1. Select CNAME from the Type drop-down menu.
  2. Enter the name in Host (never leave it blank) and the target in Answer.
  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
Host
_dmarc
Answer
v=DMARC1; p=none;

In Name.com

  1. Select TXT from the Type drop-down menu.
  2. Enter a Host only if your provider gives one, and paste the value in Answer.
  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 Name.com’s words.

We only read public DNS records. Nothing is stored.

Common mistakes with Fastmail on Name.com

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.

Name.com: Never leave a CNAME Host blank

A CNAME without a Host can overwrite other records such as MX and break email.

Visit Fastmail Visit Name.com

Rather have someone do it for you?

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

Request done-for-you setup

Fastmail on Name.com: questions

Where do I add Fastmail DNS records in Name.com?

Log in to name.com and click MY DOMAINS (top right). Click your domain, then Manage DNS Records. Add each record there, one at a time.

What goes in the Host field at Name.com?

Leave it empty 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. Name.com adds your domain automatically.

Do I need to delete my existing MX records at Name.com?

Yes. Mail servers deliver to every MX record you publish, so keep only the Fastmail MX records and delete the rest.

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.

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 Name.com