nhs.uk email records

What nhs.uk publishes in public DNS for SPF, DKIM, DMARC, MX and BIMI, resolved on 2026-08-04.

SPF

v=spf1 ip4:195.104.77.0/23 ip4:10.176.129.120 ip4:10.228.178.230 ip4:194.72.83.215 ip4:194.72.83.216 ip4:194.155.93.52/31 include:esa1.hc1668-91.c3s2.iphmx.com include:esa2.hc1668-91.c3s2.iphmx.com include:spf.protection.outlook.com include:_spf.nhs.net include:spf.mandrillapp.com -all

The record authorises these sending platforms: Microsoft 365, Mailchimp Transactional (Mandrill).

DMARC

v=DMARC1; p=reject; sp=none;adkim=s;aspf=s;fo=1; rua=mailto:A-NE.postmaster@nhs.net,mailto:dmarc-rua@dmarc.service.gov.uk

policy

p=reject

subdomains

sp=none

applies to

100% of mail

reports

mailto:A-NE.postmaster@nhs.net,mailto:dmarc-rua@dmarc.service.gov.uk

alignment

adkim=s, aspf=s

DKIM

No key found on the 24 selectors probed. Selectors cannot be enumerated from DNS, so this is not proof of absence — why.

MX

Notes on this configuration

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The above is a snapshot from 2026-08-04. Re-resolve it now:

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