Fastmail + GoDaddy

Set up Fastmail on GoDaddy

The records Fastmail needs, written with the field names GoDaddy uses (Name, Value), in the order to add them.

  • 4 steps
  • 7 DNS records

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 GoDaddy: Sign in to GoDaddy and open My Products. Under Domains, open the Portfolio tab. Select the three dots (...) next to your domain, then Edit DNS.
  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 Default
MX records Where incoming email goes Type MX Name @ Value in2-smtp.messagingengine.com Priority 20 TTL Default
SPF record Which servers may send as you Type TXT Name @ Value v=spf1 include:spf.messagingengine.com ?all Priority n/a TTL Default
DKIM A signature on every message Type CNAME Name fm1._domainkey Value fm1.yourdomain.com.dkim.fmhosted.com Priority n/a TTL Default
DKIM A signature on every message Type CNAME Name fm2._domainkey Value fm2.yourdomain.com.dkim.fmhosted.com Priority n/a TTL Default
DKIM A signature on every message Type CNAME Name fm3._domainkey Value fm3.yourdomain.com.dkim.fmhosted.com Priority n/a TTL Default
DMARC record What to do with fakes · recommended Type TXT Name _dmarc Value v=DMARC1; p=none; Priority n/a TTL Default

Step by step in GoDaddy

Point your MX records

MX records tell other mail servers where to deliver your email. How MX works

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

In GoDaddy

  1. Under DNS Records, select Add New Record.
  2. Choose MX as the type.
  3. Fill in Name, Priority and Value, and pick the TTL from the drop-down list.
  4. Select Save.
  5. Back in the list of DNS records, delete every other MX record that isn't from your new email provider.
  6. Repeat for each MX record above.

Add the SPF record

SPF lists the services allowed to send email as you. How SPF works

Type
TXT
Name
@
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 GoDaddy

  1. Under DNS Records, select Add New Record.
  2. Choose TXT as the type.
  3. Fill in Name and Value, and pick the TTL from the drop-down list. Copy and paste the value so the spacing stays exact.
  4. Select Save.

Set up DKIM

DKIM signs your mail so receivers can trust it. How DKIM works

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

In GoDaddy

  1. Under DNS Records, select Add New Record.
  2. Choose CNAME as the type.
  3. Fill in Name and Value, and pick the TTL from the drop-down list.
  4. Select Save.
  5. Repeat for each CNAME record above.

Add the DMARC record (recommended)

DMARC tells receivers what to do with mail that fakes your domain. How DMARC works

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

In GoDaddy

  1. Under DNS Records, select Add New Record.
  2. Choose TXT as the type.
  3. Fill in Name and Value, and pick the TTL from the drop-down list. Copy and paste the value so the spacing stays exact.
  4. Select Save.

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 GoDaddy’s words.

We only read public DNS records. Nothing is stored.

Common mistakes with Fastmail on GoDaddy

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.

GoDaddy: Delete old MX records and keep one SPF record

Remove every MX record left from your previous email service, including GoDaddy's own email if you used it. A leftover MX record can still receive your mail. For SPF, keep a single TXT record that starts with v=spf1: if one is already there, edit it instead of adding a second, because two SPF records break the SPF check.

GoDaddy: Type only the part before your domain

GoDaddy adds your domain to the Name automatically. Enter _dmarc or google._domainkey, not _dmarc.yourdomain.com, or the record ends up at a doubled name.

Visit Fastmail Visit GoDaddy

Fastmail on GoDaddy: questions

Where do I add Fastmail DNS records in GoDaddy?

Sign in to GoDaddy and open My Products. Under Domains, open the Portfolio tab. Select the three dots (...) next to your domain, then Edit DNS. Add each record there, one at a time.

What goes in the Name field at GoDaddy?

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. GoDaddy adds your domain automatically.

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

Yes. Sending servers pick an MX record by its priority (lowest number first) and fall back to the others, so a leftover MX record can receive some or all of your mail. Keep only the Fastmail MX records and delete the rest. Remove every MX record left from your previous email service, including GoDaddy's own email if you used it. A leftover MX record can still receive your mail. For SPF, keep a single TXT record that starts with v=spf1: if one is already there, edit it instead of adding a second, because two SPF records break the SPF check.

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.

GoDaddy steps and tips

Some of these are other email providers' official guides for GoDaddy. They describe the same GoDaddy dashboard.

Fastmail on other hosts

Other email providers on GoDaddy