IPv4 Addresses
sigstr.com. 60 IN A 104.198.111.22
Name Servers
sigstr.com. 1200 IN NS ns-1063.awsdns-04.org. sigstr.com. 1200 IN NS ns-1703.awsdns-20.co.uk. sigstr.com. 1200 IN NS ns-412.awsdns-51.com. sigstr.com. 1200 IN NS ns-809.awsdns-37.net.
Mail Servers
sigstr.com. 300 IN MX 10 aspmx.l.google.com. sigstr.com. 300 IN MX 20 alt1.aspmx.l.google.com. sigstr.com. 300 IN MX 20 alt2.aspmx.l.google.com. sigstr.com. 300 IN MX 30 aspmx2.googlemail.com. sigstr.com. 300 IN MX 30 aspmx3.googlemail.com.
SOA Details
sigstr.com. 900 IN SOA ns-1703.awsdns-20.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Certificate Authority Authorization
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
Forensic (per-failure) reports. Often omitted for privacy or volume.
sigstr.com. 300 IN DMARC v=DMARC1; p=none; pct=100; rua=mailto:[email protected]
DKIM
sigstr.com. 300 IN DKIM v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDJBDZbPV3b8DlzybnFeqO7+ADNEelSodDT8haZvedYPflItPEWroDIFsA2fU9mS+txIiRh6vNwxoIquOjGa98EGGMsdn6HodFLgvuuXLDrqnDK31TjGjtWqs+2zh0z7nv6gVzp8KAaM9hmtsDEw9z+NYQKM/YEk6ht9eU5JO0TNwIDAQAB
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| ~ Softfail | all |
—
|
|
sigstr.com. 60 IN TXT "v=spf1 include:_spf.google.com include:sendgrid.net include:spf-sigstr1.sigstr.com include:sigstr.internal include:mail.zendesk.com ~all"
MTA-STS
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).