Email DNS records for sly.io
MX, SPF, DMARC and DKIM records published for sly.io.
Disposable email domain
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sly.io publishes a null MX record, which means it does not accept email. Authentication records found: SPF. Not found: DMARC, DKIM (among common selectors).
| Check | Result | What it means |
|---|---|---|
| MX | Null MX | The domain explicitly declares that it does not accept email (RFC 7505). |
| SPF | Found | The record ends with -all: mail from servers not listed should be rejected (hard fail). |
| DMARC | Invalid record | A record exists at _dmarc, but it does not start with v=DMARC1, so receivers ignore it. |
| 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.
MX records for sly.io
- 0 .
Email authentication records for sly.io
SPF record
v=spf1 -all
DMARC record
v=spf1 -all
Check a specific email address @sly.io
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