ox.ac.uk

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

80/100 — Solid configuration with a few gaps worth closing. Accepts mail · Protected against spoofing

Findings

mx redundancy

Only one mail exchanger is published, so there is no failover.
```
oxforduni.in.tmes.trendmicro.eu
```
Fix: Add a secondary MX at a higher priority number.
spf

SPF has no enforcing terminator, so unauthorised senders are neither marked nor rejected.
```
v=spf1 redirect=_spf.ox.ac.uk
```
Fix: End the record with -all.
dmarc rua

DMARC has no rua address, so you receive no aggregate reports and are flying blind.
```
v=DMARC1; p=quarantine; ruf=mailto:dmarc-ruf@it.ox.ac.uk
```
Fix: Add rua=mailto:dmarc@ox.ac.uk to the record.
mta sts

No MTA-STS policy, so inbound mail can be downgraded to an unencrypted connection.

Fix: Publish _mta-sts.ox.ac.uk and host a policy at https://mta-sts.ox.ac.uk/.well-known/mta-sts.txt.
mx

1 mail exchanger published.
```
4 oxforduni.in.tmes.trendmicro.eu
```

dmarc

DMARC is enforcing with p=quarantine.

v=DMARC1; p=quarantine; ruf=mailto:dmarc-ruf@it.ox.ac.uk

tls rpt

TLS reporting is enabled.

v=TLSRPTv1;rua=mailto:tls-rua@mailcheck.service.ncsc.gov.uk

MX	`4 oxforduni.in.tmes.trendmicro.eu`
SPF	`v=spf1 redirect=_spf.ox.ac.uk`
DMARC	`v=DMARC1; p=quarantine; ruf=mailto:dmarc-ruf@it.ox.ac.uk`
DKIM selectors	`selector1`
MTA-STS	not published
TLS-RPT	published
BIMI	not 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=ox.ac.uk"

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