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dropbox.com

90/100

A

Scanned 2026-05-14

Cached result — add ?fresh=1 to force a new scan

Subcheck breakdown

Check	Status	Score
DMARC policy	reject	25/25
SPF record	ok	10/10
DKIM selector	found	10/10
TLS certificate	ok	20/20
WHOIS integrity	ok	10/10
Subdomain takeover	clean	15/15
MTA-STS / TLSRPT	missing	0/5
DNSSEC	unsigned	0/5

Recommendations

Publish MTA-STS: add _mta-sts.dropbox.com TXT and host a policy at https://mta-sts.dropbox.com/.well-known/mta-sts.txt
Enable DNSSEC on dropbox.com — DS records must be published to the com zone by your registrar

Details

Area	Detail
DMARC	v=DMARC1;p=reject;pct=100;rua=mailto:c7xrs-8253@rua.dmarc.emailanalyst.com,mailto:dmarc@dropbox.com
SPF	v=spf1 ip4:45.58.64.0/20 ip4:185.45.8.0/22 ip4:162.125.0.0/16 ip4:199.47.216.0/22 ip4:108.160.160.0/20 ip4:205.189.0.0/24 ip4:160.34.15.16/28 ip4:52.5.134.202/32 ip4:205.220.162.87/32 ip4:205.220.174.
DKIM selectors	zendesk1, zendesk2
TLS certificate	Ok (153 days remaining) — CN=DigiCert Global G3 TLS ECC SHA384 2020 CA1,O=DigiCert Inc,C=US
WHOIS registrar	MarkMonitor Inc.
WHOIS expires	2027-06-27T04:00:00Z
Subdomains (191 subdomains scanned, 0 at risk)	191 found
DNSSEC	Unsigned