Email DNS records for sdm.tw
MX, SPF, DMARC and DKIM records published for sdm.tw.
Receives email: No Disposable: No Free provider: No SPF: Yes DMARC: Yes
No MX records were found for sdm.tw, so it is not explicitly configured to receive email. Authentication records found: SPF, DMARC. The DKIM key found is revoked.
| Check | Result | What it means |
|---|---|---|
| MX | Not found | Some senders may try to deliver to the domain's A record, but no mail server is explicitly declared. |
| 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. Aggregate reports are requested (rua). |
| DKIM | Revoked key | A DKIM record exists under the selector default, but its public key is empty (revoked). |
Last checked: 2026-11-14 (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.
MX records for sdm.tw
No MX records were found for sdm.tw.
Email authentication records for sdm.tw
SPF record
v=spf1 -all
DMARC record
v=DMARC1; p=none; rua=mailto:07b91ce4e16b48c39fbc1df7921da6f5@dmarc-reports.cloudflare.net
DKIM record (default)
v=DKIM1; p=
Check a specific email address @sdm.tw
This page checks how sdm.tw 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 sdm.tw
Domain status
Frequently asked questions
Can sdm.tw receive email?
sdm.tw has no MX records, so it is not explicitly configured to receive email. Some senders fall back to its A record, but delivery is unreliable.
Does sdm.tw use SPF and DMARC?
sdm.tw publishes an SPF record. Its DMARC policy is p=none.
Is sdm.tw a free email provider?
No. sdm.tw is not on our list of free mailbox providers such as Gmail, Outlook or Yahoo.