Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sinclair.edu
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 21:44:34 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 140.106.57.49 ↩ sinclair.edu
Mail Server IPs
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
segovia.sinclair.edu root.sinclair.edu 678057835 10800 3600 604800 86400
Primary NS (mname)
segovia.sinclair.edu
Admin Email (rname)
root@sinclair.edu
Serial
678057835
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
segovia.sinclair.edu
ns5.oar.net
ns4.oar.net
ns6.oar.net
ns7.oar.net
ns1.oar.net
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=5fbbx5u0._spf._d.mim.ec
📊 DNS lookups: 1/10
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
16 records- SPFv=spf1 redirect=5fbbx5u0._spf._d.mim.ec
- _globalsign-domain-verification=0SGfs9vlk9bgDT2xJxZ8oWjX3qIqAAzZ7rhzc8rq1S
- ms46025137.msv1.invalid.outlook.com
- e2ma-verification=nbreb
- dEXta956YA1DIkI+L7MZWysRY+Rt0Vok5BNey0MY/kii+7eaMCm2QZqANqRvSImMYOPCU8e6Cb1v0umsKAauUA==
- MS=ms46025137
- globalsign-domain-verification=31rOHszEfxnB4Vbm4SVsqV15lgIEbSqJiA97HBJ8vo
- _globalsign-domain-verification=Ml6wgik_pP-R4mIkNYtN7d1OaIF1r0UdUfBX1CYTVI
- _globalsign-domain-verification=tst0OBlMvGlko8dQcAHhWrsXizXcqnnFzdVwIH8P5R
- a364l2al732a4kmspsl27aq6jd
- d365mktkey=Xic9oyjbh9OxLNJXTsV5mgC3tx4OwMecyx9b1exjGzwx
- 00DE0000000KWgk=1TBUX00000000rF
- _globalsign-domain-verification=JD-2x7v4Bu5aKl2x_OZTunpExqrEUmqhdOA_-Wpv3N
- d365mktkey=EPxvnQn4SlyDsKT5nAKhfg2fbAu1L3dfGuz61AVArs0x
- v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=6wjdlcryvvlq673h3u4ehtbwpkohzfem; d=concursolutions.com; t=1547818274; h=Content-Type:From:To:Subject:Message-ID:Date:MIME-Version; bh=Xhcc/5xXGzLbmXkPGiTZLftiZ8SmOZyqxVHZ9rRuAMs=; b=GqO3kOiTjr9+9qXblyzMph9qFSRrdEjdAnq4HOgtwtD4LrpzvTfC2YY8F8Kbk40G 7Wt8oLIFn6CRmBTQFRRkJmfT6cdSyHb2lHHitwoDwhCTGL/utqg2QX2iTdJx5kalaYtQn02tbIes1u5MO3xp2hz13hjOR9FG1Uz2+kPA3B4=
- 00DVB000005zk7t=1TBVB00000001SL
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