Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mountsinai.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 12:12:10 UTC · ↺ Refresh
MX Hostnames
- smtp-agent01.mountsinai.org
- smtp-agent02.mountsinai.org
- smtp-agent05.mountsinai.org
- smtp-agent03.mountsinai.org
- smtp-agent06.mountsinai.org
- smtp-agent14.mountsinai.org
- smtp-agent04.mountsinai.org
- smtp-agent11.mountsinai.org
- smtp-agent12.mountsinai.org
- smtp-agent13.mountsinai.org
MX Priorities
- smtp-agent02.mountsinai.org: 10
- smtp-agent05.mountsinai.org: 10
- smtp-agent06.mountsinai.org: 10
- smtp-agent11.mountsinai.org: 20
- smtp-agent03.mountsinai.org: 10
- smtp-agent13.mountsinai.org: 20
- smtp-agent14.mountsinai.org: 20
- smtp-agent12.mountsinai.org: 20
- smtp-agent04.mountsinai.org: 10
- smtp-agent01.mountsinai.org: 10
A / AAAA Records
- 146.203.138.44 ↩ mountsinai.org
Mail Server IPs
- 146.203.148.112 ↩ smtp-agent02.mountsinai.org
- 146.203.148.115 ↩ smtp-agent05.mountsinai.org
- 146.203.148.116 ↩ smtp.mountsinai.org
- 159.123.236.111 ↩ smtp-agent11.mountsinai.org
- 146.203.148.113 ↩ smtp.mountsinai.org
SOA Record
Raw SOA
dns03.mountsinai.org hostmaster.mountsinai.org 2013094040 7200 720 864000 3600
Primary NS (mname)
dns03.mountsinai.org
Admin Email (rname)
hostmaster@mountsinai.org
Serial
2013094040
Refresh
7200s
Retry
720s
Expire
864000s
Minimum TTL
3600s
Nameservers (NS)
a9-66.akam.net
a18-67.akam.net
a11-66.akam.net
a4-64.akam.net
a8-65.akam.net
a1-223.akam.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:40.84.22.152 ip4:205.201.24.98 ip4:68.233.77.16 ip4:146.203.0.0/16 ip4:159.123.0.0/16 ip4:68.233.76.14 ip4:69.72.33.74 ip4:20.246.85.68 exists:_spf.%{i}.bold.chat include:spf.protection.outlook.com include:spf_c.oraclecloud.com include:_spf.tinyemail.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 6 found
selector1._domainkey
selector2._domainkey
mail._domainkey
k1._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
40 records- MS=ms83027051
- jamf-site-verification=4HzAMFXvB7TUJGwvjgkNww
- google-site-verification=IycD23U78z4uK-atADsBYkJGfXk9sfu9FRREblfFQwY
- globalsign-domain-verification=fgjeAu2vxQO1nR3lqHhd2_8BTB7WowOwDNhj17lKg8
- h1-domain-verification=re3ekiqUCyEMovPyhvRgqqm5HheCUX7pyiTtH8TZL3bxmass
- google-gws-recovery-domain-verification=66749955
- google-site-verification=8z4TVhfFbxR-jE2ZaZ4dPtJs3LVTRSp7X3LVbi5l0HM
- google-site-verification=9P3CMSBMceBkJfIpGzT26T5wbl4sfU1Xt4VqIHijUeE
- atlassian-domain-verification=2fE7nVV6DfCXSKajwLoZCkMxx7NiPrCqFTujaFVHdu8Vpy4Aua0Gp9PLJinJ2jb2
- google-site-verification=i0Capqk9kbLQQQoxIt9asRX4RMpKS2Ef7kuogAbyi_8
- WFKE3Rs49oxh2blH+dog99ipEXwV1EkOx8Lkk8/Y4fCBIs8uEcYUWiuLeBl+GKDxTHZr7lQyj9vFEOR0Wg+6Mw==
- twilio-domain-verification=98f43d07afa64c8f87d2df239c1b6d5a
- google-site-verification=GHKrmN3LmXMx0q6g4RQEKR8uw-4t1n_eep5WgmRccp8
- onetrust-domain-verification=b4260c77b78e4f8e9a74a9debd100bcd
- flexera-domain-verification-uywqmgofvyueeanf
- 5sdtck8qhchmgfjhnvjc5d9nnxtnplsn
- x7ch2gscb7pr8vnvr8zyhmk4fm0777xx
- google-site-verification=1iu9mdjAMpqUPyu9-7Nq6XZSYrXC-Wb4rPlhjtBvnMc
- docusign=57565c07-07f2-4530-b5db-e592d3c6b45f
- atlassian-sending-domain-verification=677cdf93-f8be-4b0b-9de0-b798a82e72fe
- google-gws-recovery-domain-verification=66939864
- SPFv=spf1 ip4:40.84.22.152 ip4:205.201.24.98 ip4:68.233.77.16 ip4:146.203.0.0/16 ip4:159.123.0.0/16 ip4:68.233.76.14 ip4:69.72.33.74 ip4:20.246.85.68 exists:_spf.%{i}.bold.chat include:spf.protection.outlook.com include:spf_c.oraclecloud.com include:_spf.tinyemail.com ~all
- apple-domain-verification=ufB95Nc5_5GoSUZOAXlzRFBLe_xaMe3FjmKTMXjG9Po
- apple-domain-verification=dEc5Y6mwn6aWjsd6
- google-site-verification=Wv-3nn0GOqxX7C4zQf1Rj2G-hrdxSBCJzIgnLPhOaY8
- google-gws-recovery-domain-verification=60940612
- brevo-code:ecc039655e4e9551694bdfa8b63d380a
- google-gws-recovery-domain-verification=65526911
- pexip-ms-tenant-domain-verification=0bd31a27-3016-416c-8b9e-b96a309462a9
- atlassian-domain-verification=8GlS7b82cuN4GHqED2n2ojEmhEhTzdTO9JRvBiyiSU0kD3Wgsb097KAP/tdiKrSS
- adobe-sign-verification=b73b882b881c2ad523c9d302b435047c
- /pGx4PfRuLPZN8vuwII5ePvfKrEVfBxGJ5Hk2CbbYaZKYHU5zapiXcQJztPiImSvo1EXmAVTj75xvIrrI3/fOg==
- google-site-verification=gr9yOEU3sSCWkqy0pqiwoHuPB075qJqbqNONZZutNyA
- google-site-verification=f6GeHdbo4mcA2Qa4ce4u6MksxWdelB31eYYtg2hrSu0
- fg4rfb7sxtv3jkmv0c1jhmgx6hn841rc
- openai-domain-verification=dv-JcSSgQak2u27Ru13eAEJ9va6
- Dynatrace-site-verification=a39d5501-082c-40ff-b048-b0c018c10c80__lr2c0c05hqkqqi65ojpi7vmgpk
- dell-technologies-domain-verification=mountsinai.org_80a65d82-0226-40d2-91ad-defe6f9f2bd9_1690722402
- amazonses:0Xp/9zsLOYlrLjCuNKH6Mocl20Ept77ud49q//5zPLs=
- google-site-verification=NGBOArJS_wqJLoVpl3jwA3qIpR8MJsGOoX-obsTuHww
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for mountsinai.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits