Email Authentication

ordnancesurvey.co.uk

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 include:sharepointonline.com ip4:62.255.172.64/26 ip4:208.185.235.0/24 mx -all

none

Cryptographic signature on outbound mail (selector: none).

No record published.

pass

Tells receivers what to do with mail that fails SPF/DKIM. Policy: reject.

v=DMARC1; p=reject; rua=mailto:eopspam@os.uk;ruf=mailto:eopspam@os.uk;fo=1:d:s;sp=reject;

10 ordnancesurvey.mail.protection.outlook.com