Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sermo.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 02:24:40 UTC · ↺ Refresh
MX Hostnames
- sermo-com.mail.protection.outlook.com
MX Priorities
- sermo-com.mail.protection.outlook.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1942.awsdns-50.co.uk awsdns-hostmaster.amazon.com 2018030701 7200 900 1209600 86400
Primary NS (mname)
ns-1942.awsdns-50.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2018030701
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-777.awsdns-33.net
ns-1097.awsdns-09.org
ns-153.awsdns-19.com
ns-1942.awsdns-50.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_u.sermo.com._spf.dmarcly.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; pct=100; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- atlassian-sending-domain-verification=3d255950-2ed3-4278-9006-c495936e04e5
- drift-domain-verification=1fe0b64f621ae9ff1c7879214679edb4aa5c62332e529e9a6da6b61d74cff163
- google-site-verification=Q-Xoi-k3a3GqSDDTfxCDG3pyJkyPAOJqngSfyQp9FO0
- google-site-verification=SIYe74TXCfEVxmPVXYF7iuUDTtXx9eOY6IvkvwNmRwI
- smartsheet-site-validation=7Z79MW6qtz_O4wIrlrLLQe9tsUr7a9Py
- SPFv=spf1 include:_u.sermo.com._spf.dmarcly.com ~all
- yahoo-verification-key=u69t8yOFuKWCp761/HnNLJ56mBBG2CfX+DAq0MYY7k4=
- 1password-site-verification=TZ5FX7DFVBGADK7BWWBQFB5NLA
- adobe-idp-site-verification=5eb6d1cf53df156ad8281171753c326d5c0f2d1b6b7feeef80d9054b58e0bac1
- anthropic-domain-verification-qeg0vq=LXx05stQSA9g5GyS96l0u260T
- apple-domain-verification=zygDNCTw5vISuXxOhGWmWvTRRlTpeJ8_sVK-Fc69hDs
- atlassian-domain-verification=Ktgoa8WMy2VQbIQomPFcy/gJC2p3tdGNlzEEyQkiCH2k5NDymNuot/KuAurSd3hS
Full email verification for sermo.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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