notion.so

Live email deliverability and anti-spoofing audit. Every value below was read from public DNS at the moment this page was generated.

50/100 — Significant gaps. Delivery problems and spoofing are both likely. Does not accept mail · Protected against spoofing

Findings

mx

No MX records. Mail sent to this domain has no defined destination.

Fix: Publish MX records pointing at your mail host.
spf

SPF ends in ~all (softfail); unauthorised mail is marked rather than rejected.
```
v=spf1 ~all
```
Fix: Move to -all once you have confirmed all senders are listed.
dkim

No DKIM key found at any common selector. Either DKIM is not configured, or it uses a custom selector we cannot discover from DNS alone.

Fix: Enable DKIM signing at your mail provider and publish the selector they give you.

dmarc

DMARC is enforcing with p=quarantine.

v=DMARC1; p=quarantine; pct=100; rua=mailto:re+1b3a27dd30bc@inbound.dmarcdigests.com;

bimi

BIMI is published; supporting clients can show your logo.

v=BIMI1; l=https://vmc.digicert.com/ae66f82a-dd47-4f08-9fd9-fd865f1d0b30.svg; a=https://vmc.digicert.com/ae66f82a-dd47-4f08-9fd9-fd865f1d0b30.pem

MX	none
SPF	`v=spf1 ~all`
DMARC	`v=DMARC1; p=quarantine; pct=100; rua=mailto:re+1b3a27dd30bc@inbound.dmarcdigests.com;`
DKIM selectors	none discovered
MTA-STS	not published
TLS-RPT	not published
BIMI	published
DNSSEC	not validating

Run this check in your own code

Same data, as JSON, in one request. No SMTP probing, no stored recipient data, 250 free calls a month.

curl "https://mailgrade.dev/v1/domain?domain=notion.so"

Also available: /v1/verify?email=… for individual addresses, and /v1/verify/batch for lists.