merrimack.edu

Valid Email Server
Domain Lookup › merrimack.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
merrimack.edu
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 06:03:56 UTC · ↺ Refresh

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MX Hostnames

  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt4.aspmx.l.google.com

MX Priorities

  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1

A / AAAA Records

  • 141.193.213.20
  • 141.193.213.21

Mail Server IPs

  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
  • 142.251.16.26 ↩ bl-in-f26.1e100.net
  • 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net

SOA Record

Raw SOA mmhm.comcastbusiness.net hostmaster.comcast.com 2025012930 7200 3600 604800 3600
Primary NS (mname)
mmhm.comcastbusiness.net
Admin Email (rname)
hostmaster@comcast.com
Serial
2025012930
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns5.comcastbusiness.net
ns1.comcastbusiness.net
ns2.comcastbusiness.net
ns3.comcastbusiness.net
ns4.comcastbusiness.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.merrimack_edu._d.easydmarc.pro ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=reject;pct=2;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
⚠ Policy applies to 2% of failing messages only

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

12 records
  • s4g3f31m8a3e4e7jpce64m24d0
  • openai-domain-verification=dv-67FUnxUBMpec0lOakOaRIXmX
  • SPFv=spf1 include:_spf.merrimack_edu._d.easydmarc.pro ~all
  • google-site-verification=11xzGjwjuQCggovhdCbPcyLewlZdztGcMFPhVxCKhv0
  • google-site-verification=5BF6py4e7uXatu-7rc8rNk-qtGef0YgPkXwACx3cL8I
  • google-site-verification=gWuLXicBMiQRLgDxfilvT8aNGzv1StwfnLU9icGumvg
  • google-site-verification=yjxdeWB0WtzZ7W38Bx5tzPClGanQX7_c-heWqySawQE
  • adobe-idp-site-verification=a24d44cfa87acd43d604a4395ecc64799bbe4c5c9262b1f15fc8e6fa0efa18ba
  • ZOOM_verify_UOzynGrCSu8bn1VLxOvlrL
  • MS=ms46700000
  • t=y\\; o=~\\;
  • e2ma-verification=n3hfb
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