IPv4 Addresses
mailrush.io. 600 IN A 200.74.246.151
Name Servers
mailrush.io. 600 IN NS ns1.cybercastco.com. mailrush.io. 600 IN NS ns2.cybercastco.com.
SOA Details
mailrush.io. 600 IN SOA ns1.cybercastco.com. ns.sky-ip.com. 2026070606 7200 7200 604800 600
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).
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
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.
mailrush.io. 600 IN DMARC v=DMARC1; p=reject; sp=reject; aspf=r; adkim=s; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400;
DKIM
mailrush.io. 600 IN DKIM v=DKIM1; k=rsa; s=email; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArk8AhBCyb/unNgHbAbNhXC24peDwkjPIejDyCiUpmE+1D9f+SmS58e85F9yrY3Rem0mh3NhuFxAJg32tK02JxXtxCn2+vl0gpcpBMXxfqsHLpoc2jQBgCvgrIW85nHcleX4s6jBdixVzfOVztY1NwZpgG0SLgUC5iEi+UFjlPsMgQOGu0oeQsidMZuziCXHg2cjdIjVUAyJyr2eFz3UzplY+asepfig/xPZLPC2vCqbW54fYHCxFXoPoXXZeZzY9pcd5F0gGxtSxNlD8LoI5ZnhCg8xVK8LgFXNNax4baUFL7wDnPkjd65StMOR2DIJltC+bFScCHSz7F8m2V1M2cwIDAQAB;
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | a |
—
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|
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| + Pass | mx |
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| + Pass | include |
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||
| - Fail | all |
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mailrush.io. 600 IN TXT "v=spf1 +a +mx include:_spf.mailrush.io -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).
Text Content
mailrush.io. 600 IN TXT "google-site-verification=02nDj4gFRU_Wtt6Bp10ZWEG8vXQt8cvRzcN9y2TA13w"