Email provider
Fastmail DNS records
Independent, privacy-respecting email with your own domain. Records can be added at any DNS host.
Where is your domain's DNS managed?
Each guide below uses that host's field names, steps and known problems.
- Amazon Route 53 Fastmail on Amazon Route 53
- Bluehost Fastmail on Bluehost
- Cloudflare Fastmail on Cloudflare
- DreamHost Fastmail on DreamHost
- GoDaddy Fastmail on GoDaddy
- Hostinger Fastmail on Hostinger
- IONOS Fastmail on IONOS
- Name.com Fastmail on Name.com
- Namecheap Fastmail on Namecheap
- Network Solutions Fastmail on Network Solutions
- OVHcloud Fastmail on OVHcloud
- Porkbun Fastmail on Porkbun
- SiteGround Fastmail on SiteGround
- Squarespace Domains Fastmail on Squarespace Domains
- Wix Fastmail on Wix
- WordPress.com Fastmail on WordPress.com
The records Fastmail needs
These are the values for any DNS host. Field names differ between hosts, so use the host guides above for the exact boxes to fill in.
| Record | Type | Host / Name | Value | Priority | TTL | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| MX records Where incoming email goes | Type | MX | Host / Name | @ | Value | in1-smtp.messagingengine.com | Priority | 10 | TTL | Default |
| MX records Where incoming email goes | Type | MX | Host / Name | @ | Value | in2-smtp.messagingengine.com | Priority | 20 | TTL | Default |
| SPF record Which servers may send as you | Type | TXT | Host / Name | @ | Value | v=spf1 include:spf.messagingengine.com ?all | Priority | n/a | TTL | Default |
| DKIM A signature on every message | Type | CNAME | Host / Name | fm1._domainkey | Value | fm1.yourdomain.com.dkim.fmhosted.com | Priority | n/a | TTL | Default |
| DKIM A signature on every message | Type | CNAME | Host / Name | fm2._domainkey | Value | fm2.yourdomain.com.dkim.fmhosted.com | Priority | n/a | TTL | Default |
| DKIM A signature on every message | Type | CNAME | Host / 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 | Host / Name | _dmarc | Value | v=DMARC1; p=none; | Priority | n/a | TTL | Default |
Common Fastmail mistakes
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.
Check your Fastmail DNS
Enter your domain to see which records are in place.
Looks good Needs attention Missing or wrong Info
Sources
- Manual DNS configuration (Fastmail Help) Checked October 21, 2026
- RFC 7208: Sender Policy Framework (IETF) Checked October 21, 2026
Rather have someone do it for you?
Tell us your domain and we will add and verify every record for your email, then send you the check results.