IPv4 Addresses
sumofiber.com. 1200 IN A 35.206.101.187
Mail Servers
sumofiber.com. 1200 IN MX 0 sumofiber-com.mail.protection.outlook.com.
SOA Details
sumofiber.com. 1200 IN SOA slcici1avwdc001.ribboncloud.ic. hostmaster.ribboncloud.ic. 2026050101 900 600 86400 3600
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.
sumofiber.com. 1200 IN DMARC v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; sp=none; aspf=r;
DKIM
sumofiber.com. 1200 IN DKIM v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
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| + Pass | include |
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| + Pass | include |
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| + Pass | include |
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| + Pass | include |
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| + Pass | ip4 |
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| - Fail | all |
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sumofiber.com. 1200 IN TXT "v=spf1 include:_spf.hostedonhold.com include:spf.protection.outlook.com include:myh2o.com include:spf.mandrillapp.com include:40167997.spf05.hubspotemail.net ip4:198.91.50.210 -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
sumofiber.com. 1200 IN TXT "MS=E402361B075D26977F14E3FBA4E10E78CEEA4D8E" sumofiber.com. 1200 IN TXT "Sendinblue-code:56bb876e060370cdf4c2f5ac8daa19a8" sumofiber.com. 1200 IN TXT "00715335"