Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cengage.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 04:40:27 UTC · ↺ Refresh
MX Hostnames
- mxa-0012df01.gslb.pphosted.com
- mxb-0012df01.gslb.pphosted.com
MX Priorities
- mxb-0012df01.gslb.pphosted.com: 10
- mxa-0012df01.gslb.pphosted.com: 10
A / AAAA Records
- 69.32.208.75 ↩ cengagecommunity.com
Mail Server IPs
- 148.163.146.140 ↩ mx0a-0012df01.pphosted.com
- 148.163.142.111 ↩ mx0b-0012df01.pphosted.com
SOA Record
Raw SOA
a1-49.akam.net hostmaster.ohcinmason.com 6896 900 480 1036800 900
Primary NS (mname)
a1-49.akam.net
Admin Email (rname)
hostmaster@ohcinmason.com
Serial
6896
Refresh
900s
Retry
480s
Expire
1036800s
Minimum TTL
900s
Nameservers (NS)
a13-64.akam.net
a6-67.akam.net
a9-64.akam.net
a1-49.akam.net
a20-66.akam.net
a14-65.akam.net
SPF Record
✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
35 records- onetrust-domain-verification=8992c9ef19b14ccf84bc7c93bdd68372
- 6kg49tjr73tbbphlx3g5tyy3v5kfyscf
- extensis-domain-verification=521ba37c-0621-4e5a-bffc-aac3658c82e6
- docusign=3b8ea700-ffcd-4502-85ec-47cee340dcc8
- amazonses:9gG9U0Lq8dN2UmomYK8l3KdOlkgMa+mnI2rykI6k5OE=
- Dynatrace-site-verification=8846c63b-5bc7-4933-a1e3-ba5d266f31cf__dkc7snecm1tqgv92msaufmv1a0
- google-site-verification=81nfnsdzn7AkMec_CFlzwpc-74eEYPewLRbTHz4PQ68
- e259XBTIajsWpP7xjZXeBs8g+Hx9cAxlKHEs5yE49eti2FFCEmmZeumJ79QU7Xf2h7rjJrKMCxDJp8VCIfgRbw==
- lqyrmnh95ytdfl4t33jvdg9n8xf61cwq
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
- atlassian-domain-verification=nlYxrfHVHOx6xAROWhYkj0qlqsuD8icY76/zzexHo7ltLc37TR65PX4JXnfKTKsk
- openai-domain-verification=dv-ElVgkGuW38ITDqs3vQ3OilBu
- ca3-08347303430347caa5efdc0f16011f86
- pendo-domain-verification=b29152b5-8c0a-4ca9-bcb7-cd4a9f3167be
- -aVVLZih6eW_hJI8U15kTukhjMoJ
- facebook-domain-verification=94xv76rrwldjw6bter1pd09lebpvzp
- google-site-verification=L_XIohOodP_pkkG1LWK5fgTNPu5zY992G2p9vzxnpT0
- slack-domain-verification=kVF5zo1TjQzg8muoanv1ET8v6hVwMhCwdvJeTUlE
- google-site-verification=rMegLmxTlbTTydYNGH-cOiN9WcOFsuaXx9gpR2RMwx8
- jetbrains-domain-verification=a0y0wvbxlf5cjmzp5xxeue5s1
- jamf-site-verification=lbpt07mBT7VIXextB7Z2iw
- canva-site-verification=i-clypBOQ_EIkPkiTrsj5Q
- ca3-010c96dc70424fcf926cbbcc328895b9
- m7g/5gjTgLDClq+067EKbbxE2fKjHuuo3yJz2/q+JcHmqgoiLrouEtb4aaYusUBl+gXCxnsPwBIk+gsJtxWZng==
- ca3-77af619fc9f94842ac5b06c656c09de1
- tvmd0p25vpf6p8qj6bqkfx4cwpnb3f7p
- ca3-72aa42386d5f4267986bf164aef3b924
- cl_verification=5ee9438f-89f0-4e9b-8509-45a7d55c8fd2
- wrike-verification=MjcxNDk5NTozZmFhMWNjN2FjMWE5ZjBhMjNiMjlkOGRlYjc2OGNiNzUxNGE4NDM1M2Y2ZWFiMGM3MzJlMDBjMmQzMzhiYjU2
- nx1g6jw40mf9kk91kk9fhp097qgzjfgw
- Dynatrace-site-verification=ae835581-28a2-4c27-806a-a296df18563f__k74n86q9sk62ojhtv9s2cchdm0
- pardot964913=ebff28138cab9f5156f2232eedce4d4d9d0b347c567e7355bf45717b5cfdee5d
- google-site-verification=tCSYUitMiwJtbVb_9zj0h0KgQ2dg7UtcGArBd0nPjAM
- hlg77cp9rqkrvmw1gcdk85rzr0mlwpz2
- amazonses:ZM4eVRk97YUcHxkUC86AVem6V2IpdP6OnnY1W5LGrho=
Full email verification for cengage.com
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