express.ironmountain.com

Valid Email Server
Domain Lookup › express.ironmountain.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
express.ironmountain.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-06-03 12:02:58 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 76.76.21.21

Mail Server IPs

  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 64.233.180.26 ↩ pe-in-f26.1e100.net
  • 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net

SOA Record

Raw SOA nusdnsgm01.ironmountain.com webmaster.ironmountain.com 40 10800 3600 2592000 900
Primary NS (mname)
nusdnsgm01.ironmountain.com
Admin Email (rname)
webmaster@ironmountain.com
Serial
40
Refresh
10800s
Retry
3600s
Expire
2592000s
Minimum TTL
900s

Nameservers (NS)

ns2.ironmountain.com
ns1.ironmountain.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_int1.imrm.com include:_ext2.imrm.com include:_ext3.imrm.com include:_ext4.imrm.com include:_ext5.imrm.com include:_spf.salesforce.com include:_netblocks.google.com include:_netblocks3.google.com ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 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

4 records
  • google-site-verification=DOgYElQaATmTObaLoki7S8Ps3FdIAR9PQ4lgs2Xv-2U
  • SPFv=spf1 include:_int1.imrm.com include:_ext2.imrm.com include:_ext3.imrm.com include:_ext4.imrm.com include:_ext5.imrm.com include:_spf.salesforce.com include:_netblocks.google.com include:_netblocks3.google.com ~all
  • google-site-verification=FymunrYhp_tpC97_sv69RCq-hZ2QwoKFqdqNfFEmv28
  • google-site-verification=Eq8pfgdSVwrKDAXdJ71TZ-57aDmA32GniWnSDBQrXY8
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