IPv4 Addresses

TTL

Name Servers

TTL

SOA Details

TTL
SOA Primary NS
20m
SOA Responsible
hostmaster.yammerusercontent.com
SOA Serial
2019121632
SOA Times
Refresh 1h
Retry 10m
Expire 7d
Minimum TTL 5m

Certificate Authority Authorization

TTL
CAA
0 contactemail [email protected]
20m
CAA
20m

DMARC

TTL

No DMARC TXT record was returned (expected at `_dmarc.<domain>` with `v=DMARC1`). Without DMARC you cannot publish receiver policy or standard aggregate failure reports (RUA).

DKIM

TTL

No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.

SPF (Sender Policy Framework)

TTL

No SPF TXT record was returned (`v=spf1` / `spf2.0/`). SPF tells receivers which hosts may send mail for this domain; without it, aligned DMARC and spoofing defenses are weaker.

MTA-STS

TTL

This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).