Email DNS records for castens.com
MX, SPF, DMARC and DKIM records published for castens.com.
Receives email: Yes Disposable: No Free provider: No SPF: Yes DMARC: Yes
castens.com can receive email: 1 MX record found. The MX records point to Microsoft mail servers. Authentication records found: SPF, DMARC. Not found: DKIM (among common selectors).
| Check | Result | What it means |
|---|---|---|
| MX | Found (1) | The domain is configured to receive email. |
| Mail provider | Microsoft | Inferred from the MX host names: they point to Microsoft mail servers. |
| Free email provider | No | Not a free mailbox service like Gmail or Yahoo. |
| SPF | Found | The record ends with -all: mail from servers not listed should be rejected (hard 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. |
| 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: 2026-10-21 (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 castens.com
- 0 castens-com.mail.protection.outlook.com (52.101.73.126)
Email authentication records for castens.com
SPF record
v=spf1 ip4:185.20.205.71 include:spf.simply.com include:spf.protection.outlook.com include:spf-record.net -all
DMARC record
v=DMARC1; p=none;
Check a specific email address @castens.com
This page checks how castens.com is configured for email. It does not confirm that a specific mailbox exists — to check one address, use the form below.
Server location
Name servers
TXT records for castens.com
Frequently asked questions
Can castens.com receive email?
Yes. castens.com publishes 1 MX record, so it is configured to receive email. To know whether a specific address exists, verify that address.
Does castens.com use SPF and DMARC?
castens.com publishes an SPF record. Its DMARC policy is p=none.
Is castens.com a free email provider?
No. castens.com is not on our list of free mailbox providers such as Gmail, Outlook or Yahoo.