Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
roundtower.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 03:39:59 UTC · ↺ Refresh
MX Hostnames
- roundtower-com.mail.protection.outlook.com
MX Priorities
- roundtower-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.33.152.147 ↩ a4ec4c6ea1c92e2e6.awsglobalaccelerator.com
- 15.197.142.173 ↩ a4ec4c6ea1c92e2e6.awsglobalaccelerator.com
Mail Server IPs
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.ahddns.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns1.ahddns.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.ahddns.com
ns4.ahddns.com
ns1.ahddns.com
ns2.ahddns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;fo=1;ri=86400;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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
7 records- docusign=e8e6a91a-170e-4699-90ee-62cc739769b1
- ee1718efd99683708585b0ec0e88ab2ed24573f3
- google-site-verification=o1apGGdcJxJIFS-LMEHHqPqB9xgYx-M86U KuhLeb5yQ
- google-site-verification=wrQKq1DsM5fqTo8NWqDV-6RxtIaBnC0ctyuQtDVCgBQ
- smartsheet-site-validation=z1H6-dKaHYYSqqTvGIDD0WmYVEUY4K85
- SPFv=spf1 include:spf.protection.outlook.com -all
- _21jijntzalntuf4eft4nxk4r25fyzxx
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