Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
harvardmaint.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 08:40:29 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns-1458.awsdns-54.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1458.awsdns-54.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-687.awsdns-21.net
ns-108.awsdns-13.com
ns-1458.awsdns-54.org
ns-1666.awsdns-16.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:us._netblocks.mimecast.com include:_spf.atlassian.net include:_netblocks.icims.com include:_spf.plan.io include:u19966362.wl113.sendgrid.net include:21976991.spf04.hubspotemail.net exists:%{i}._spf.mta.salesforce.com ~all
📊 DNS lookups: 9/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
13 records- twilio-domain-verification=fdee88025e9fb6122613e8728fac123f
- SPFv=spf1 a mx include:us._netblocks.mimecast.com include:_spf.atlassian.net include:_netblocks.icims.com include:_spf.plan.io include:u19966362.wl113.sendgrid.net include:21976991.spf04.hubspotemail.net exists:%{i}._spf.mta.salesforce.com ~all
- 2b94gbppffmtlcjwc054cp4hf3h3370r
- MS=13C5800BA49E4C328B5E32EBA77645B172D361DF
- amazonses:YayEKENaBqgnoaze/fExjxKM7GxfHMgNkHG0rAlR8Ko=
- apple-domain-verification=Jz7Ghk9b90FxVzmB
- atlassian-domain-verification=F2nHSc6J5BfPYUAoXmmlwnHq9cq6TOBHsr/zu/Hfwa6cSB8q6b/3psw8SvYXGPCi
- b5a59b76f962f76b1fa7a3d7288155b830b97b13
- docusign=76c69e64-4243-4d21-810e-87b9e530a091
- gamma-domain-verification-k4xrmt=1wSp9vFikns6mI9WHucxlFB0q
- google-site-verification=F8VDpdIbmiqwezjL1eMNU2Padx4AmLAfVjeKqtvUjiU
- nitro-verification-code=NDI0OTg2OTc0NTM5NzkxODg2MQ==
- openai-domain-verification=dv-RctjVSmk40hLbE5Pi7u5uUUX
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