Fastmail + Network Solutions
Set up Fastmail email on Network Solutions
The records Fastmail needs, written with the field names Network Solutions uses (Refers to, Mail server, TXT Value, Alias to), in the order to add them.
- 4 steps
- 7 DNS records
- Sources checked October 21, 2026
Before you start
- Have your Fastmail account ready. Some values are unique to your account and come from the Fastmail Settings.
- Open DNS at Network Solutions: Sign in at networksolutions.com/manage-it and select Domain Names. Tick the box next to your domain. Under Actions, select the three dots, then Manage. Scroll to Advanced Tools and, next to Advanced DNS Records, select MANAGE (select Continue if asked).
- 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.
| Record | Type | Refers to | Value | Priority | TTL | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| MX records Where incoming email goes | Type | MX | Refers to | @ | Value | in1-smtp.messagingengine.com | Priority | 10 | TTL | Default |
| MX records Where incoming email goes | Type | MX | Refers to | @ | Value | in2-smtp.messagingengine.com | Priority | 20 | TTL | Default |
| SPF record Which servers may send as you | Type | TXT | Refers to | @ | Value | v=spf1 include:spf.messagingengine.com ?all | Priority | n/a | TTL | Default |
| DKIM A signature on every message | Type | CNAME | Refers to | fm1._domainkey | Value | fm1.yourdomain.com.dkim.fmhosted.com | Priority | n/a | TTL | Default |
| DKIM A signature on every message | Type | CNAME | Refers to | fm2._domainkey | Value | fm2.yourdomain.com.dkim.fmhosted.com | Priority | n/a | TTL | Default |
| DKIM A signature on every message | Type | CNAME | Refers to | fm3._domainkey | Value | fm3.yourdomain.com.dkim.fmhosted.com | Priority | n/a | TTL | Default |
| DMARC record What to do with fakes · recommended | Type | TXT | Refers to | _dmarc | Value | v=DMARC1; p=none; | Priority | n/a | TTL | Default |
Step by step in Network Solutions
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
- Refers to
-
@ - Priority
- 10
- Mail server
-
in1-smtp.messagingengine.com
- Type
- MX
- Refers to
-
@ - Priority
- 20
- Mail server
-
in2-smtp.messagingengine.com
In Network Solutions
- On Manage Advanced DNS Records, select +ADD RECORD.
- Under Type, choose MX.
- Set Refers to @, enter the Mail server and the Priority, and pick a TTL.
- Select ADD.
- Delete any other MX records: select the edit tool, then Delete.
- 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
- Refers to
-
@ - 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 Network Solutions
- Select +ADD RECORD.
- Under Type, choose TXT.
- Set Refers to (@ for your bare domain), paste the TXT Value, and pick a TTL.
- Select ADD.
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 Name
-
fm1._domainkey - Alias to
-
fm1.yourdomain.com.dkim.fmhosted.com
- Type
- CNAME
- Host Name
-
fm2._domainkey - Alias to
-
fm2.yourdomain.com.dkim.fmhosted.com
- Type
- CNAME
- Host Name
-
fm3._domainkey - Alias to
-
fm3.yourdomain.com.dkim.fmhosted.com
In Network Solutions
- Select +ADD RECORD.
- Under Type, choose CNAME.
- Set Refers to Other Host, enter the name in Host Name and the target in Alias to.
- Select ADD.
- 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
- Refers to
-
_dmarc - TXT Value
-
v=DMARC1; p=none;
In Network Solutions
- Select +ADD RECORD.
- Under Type, choose TXT.
- Set Refers to (@ for your bare domain), paste the TXT Value, and pick a TTL.
- Select ADD.
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 Network Solutions’s words.
Common mistakes with Fastmail on Network Solutions
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.
Network Solutions: Values must not end with a dot
Network Solutions doesn't accept a final period on mail server or CNAME targets. Enter them without the trailing dot.
Rather have someone do it for you?
Tell us your domain and we will add and verify every record for Fastmail on Network Solutions, then send you the check results.
Fastmail on Network Solutions: questions
Where do I add Fastmail DNS records in Network Solutions?
Sign in at networksolutions.com/manage-it and select Domain Names. Tick the box next to your domain. Under Actions, select the three dots, then Manage. Scroll to Advanced Tools and, next to Advanced DNS Records, select MANAGE (select Continue if asked). Add each record there, one at a time.
What goes in the Refers to field at Network Solutions?
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. Network Solutions adds your domain automatically.
Do I need to delete my existing MX records at Network Solutions?
Yes. Mail servers deliver to every MX record you publish, so keep only the Fastmail MX records and delete the rest. Network Solutions doesn't accept a final period on mail server or CNAME targets. Enter them without the trailing dot.
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.
- Connect your DNS records at Network Solutions to Microsoft 365 (Microsoft Learn) Checked October 21, 2026
- Manual DNS configuration (Fastmail Help) Checked October 21, 2026
- RFC 7208: Sender Policy Framework (IETF) Checked October 21, 2026
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- Fastmail on Namecheap
- Fastmail on OVHcloud
- Fastmail on Porkbun
- Fastmail on SiteGround
- Fastmail on Squarespace Domains
- Fastmail on Wix
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