Email DNS records for fastmail.com
MX, SPF, DMARC and DKIM records published for fastmail.com. Registered via Gandi Sas. Domain age: 31 years.
fastmail.com can receive email: 2 MX records found. The MX records point to Fastmail mail servers. Authentication records found: SPF, DMARC. Not found: DKIM (among common selectors).
| Check | Result | What it means |
|---|---|---|
| MX | Found (2) | The domain is configured to receive email. |
| Mail provider | Fastmail | Inferred from the MX host names: they point to Fastmail mail servers. |
| SPF | Found | The record ends with ~all: mail from servers not listed should be treated as suspicious but accepted (soft fail). |
| DMARC | p=none | The policy is none: receivers are asked to take no specific action on messages that fail DMARC. It is typically used to monitor authentication. Aggregate reports are requested (rua). |
| DKIM | Not found among common selectors | DKIM can only be confirmed with the selector used by the sender, so this does not mean the domain has no DKIM. |
Last checked: 2026-10-08 (UTC). DNS records can change over time. This report lists public DNS records; their presence does not by itself mean that a domain or its messages are safe.
Next steps
MX records for fastmail.com
- 10 in1-smtp.messagingengine.com
- 20 in2-smtp.messagingengine.com
Email authentication records for fastmail.com
SPF record
v=spf1 include:spf.messagingengine.com ~all
DMARC record
v=DMARC1; p=none; rua=mailto:e3936a44@inbox.ondmarc.com
Check a specific email address @fastmail.com
This page checks how fastmail.com is configured for email. It does not confirm that a specific mailbox exists — to check one address, use the form below.
Domain registration
Created1994-12-09
Updated2023-11-07
Expires2024-12-08
Server location
IP address103.168.172.62
Reverse IPwww.fastmail.com
CountryAustralia
ASN19151
Name servers
NS 1fmns1.messagingengine.com.
NS 2fmns2.messagingengine.com.
TXT records for fastmail.com
TXT 1v=spf1 include:spf.messagingengine.com ~all
Domain status
Status 1clienttransferprohibited http://www.icann.org/epp#clienttransferprohibited