Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
carnegielearning.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 21:44:09 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 18.238.80.76 ↩ server-18-238-80-76.jfk52.r.cloudfront.net
- 18.238.80.92 ↩ server-18-238-80-92.jfk52.r.cloudfront.net
- 18.238.80.23 ↩ server-18-238-80-23.jfk52.r.cloudfront.net
- 18.238.80.15 ↩ server-18-238-80-15.jfk52.r.cloudfront.net
- 2600:9000:266a:8c00:d:145e:1440:93a1
- 2600:9000:266a:6e00:d:145e:1440:93a1
- 2600:9000:266a:ae00:d:145e:1440:93a1
- 2600:9000:266a:de00:d:145e:1440:93a1
- 2600:9000:266a:4600:d:145e:1440:93a1
- 2600:9000:266a:a000:d:145e:1440:93a1
- 2600:9000:266a:6c00:d:145e:1440:93a1
- 2600:9000:266a:1e00:d:145e:1440:93a1
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns-1587.awsdns-06.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 300
Primary NS (mname)
ns-1587.awsdns-06.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns-1471.awsdns-55.org
ns-1587.awsdns-06.co.uk
ns-272.awsdns-34.com
ns-667.awsdns-19.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:143.55.224.215 ip4:23.23.239.161 ip4:204.80.87.57/29 ip4:204.80.87.1/26 ip4:8.28.72.135 ip4:34.197.210.60 ip4:136.146.208.16/28 ip4:136.146.210.16/28 ip4:64.71.133.0/26 include:spf.US.exclaimer.net include:_spf.salesforce.com include:us._netblocks.mimecast.com include:_spf.google.com include:21382242.spf02.hubspotemail.net include:spf1.formassembly.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 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
23 records- miro-verification= 0c3c36a030a10b2406b17bd1e7acf416546413a7
- google-site-verification=H30xfeG6ixWlpatXNUQf1X5mRarbPWB2hSsbkjonv20
- ln5os1n3psb5i5sc1uen14pepk
- jqHI5+v4vLdu8XEcDKTC4LqQi9nw1nCuEgeI9jzYFiqqoLFtAZTMQB7h1qRfLSQWv64kS7nEiR5D4rq6sZZWYw==
- apple-domain-verification=2ocA2Pjg9dTJ3QNj
- d3g2vhjipsjp3q206a5te22gqb
- adobe-idp-site-verification=017e1339e37fde99bee840b9affc62f9e18f6e3f577a5008e77b039c5e8f3e63
- atlassian-sending-domain-verification=33bb252f-b20d-44f5-b2d5-5a8cef163c1a
- unity-sso-verification=7d11d21f-aec7-4ca3-950f-3da6bc285ea9
- ebook-cert=ULCGGJ69F5V0O48S8V0I0SKH2A
- atlassian-domain-verification=u/CGE/wBHBX9vHwC/cMcIMpr8hVi/6B7Qpm2l+8CGdGdzoV+Fzoc2yu8ydoZixiD
- MS=D859E588F983F173FDBB8C571DC9B9CC9A16FCA7
- 1pjei50g1a5b0v03subm9lv2dt
- 5njgutg9h9u7ijg5gmihngdr1p
- flippingbook-verification=EcaJX3P1looDZULT
- lfvpcjebj7q84r1e7fijd87r2a
- marketo-cert=4M25FH7CE61206SF8236L2K2FR
- airtable-verification=c7f0cecfa702d45976814ee0f51a08aa
- smartsheet-site-validation=vUCOvYqXeAixwzLenEsrzKzPVSZORkzc
- 20241119183302pm._domainkey
- k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCTMYVJa9dt2s1y7Z6xh03kUJC/cQfrjyJhkO/ihyN8IciVbl9M6g5Noex7tyOfvmaFyEEmrtqzmhLhUI4JKyMbd6vBgtw9jXpqu6eSrhdM5iqhLOZ2WrMevH9Mhp4+wfvN8hzxG3sDH17FHfJ5P826MwPAY4UCgfjpHesO5ABoEwIDAQAB
- beam-verification=BUKXidKZlCKYOtBQxZ2lizKLa9m9d3xRkFFuNdkL3dPm8wmV
- SPFv=spf1 ip4:143.55.224.215 ip4:23.23.239.161 ip4:204.80.87.57/29 ip4:204.80.87.1/26 ip4:8.28.72.135 ip4:34.197.210.60 ip4:136.146.208.16/28 ip4:136.146.210.16/28 ip4:64.71.133.0/26 include:spf.US.exclaimer.net include:_spf.salesforce.com include:us._netblocks.mimecast.com include:_spf.google.com include:21382242.spf02.hubspotemail.net include:spf1.formassembly.com ~all
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