Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
forrent.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 22:40:30 UTC · ↺ Refresh
MX Hostnames
- costar-com.mail.protection.outlook.com
MX Priorities
- costar-com.mail.protection.outlook.com: 10
A / AAAA Records
- 23.52.198.131 ↩ a23-52-198-131.deploy.static.akamaitechnologies.com
Mail Server IPs
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.costar.com hostmaster.costar.com 2030277952 7200 3600 86400 3600
Primary NS (mname)
ns1.costar.com
Admin Email (rname)
hostmaster@costar.com
Serial
2030277952
Refresh
7200s
Retry
3600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
a4-66.akam.net
a22-64.akam.net
a6-67.akam.net
a3-65.akam.net
a9-64.akam.net
a1-73.akam.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:sendgrid.net include:costar.com ~all
📊 DNS lookups: 2/10
~ 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
17 records- jmkt54p5sfo11f7hopv5d01s6q
- docker-verification=76156635-735c-4987-a3a5-39868d93132f
- lteh0494v7uha1naf9kdglpuat
- logmein-verification-code=beff0e8f-47a1-4a76-b3e7-6098190b929a
- BvU3uoFN/NvZUPhKgXAeW/RjTtfKiwTbQdqDK5qVy7SALPFQn+Ifd19ZUWRR7VS1OYeJPjiUJBj43d/TEUs4oA==
- DMARCv=DMARC1; p=none; pct=100; rua=mailto:[email protected]
- globalsign-domain-verification=KaParXxs1OHDy7o8CMbPpHBN-2m_mzwdPqKMMQ66a6
- _2j4f57rzo6nut1kznqclkbmwmiyhqw2
- _0t55gogy0qjzj1nrit321b2xsj4lxnq
- jitldhvlt7id8utrtnrh2j9i8v
- SPFv=spf1 include:sendgrid.net include:costar.com ~all
- google-site-verification=4qiznDK3iCJLAp0XsqvPICSJ9N0IhChcQxe4PMwpwpY
- ZOOM_verify_eXPZqcWRRUqr-ooTU6_3jw
- MS=ms75915456
- google-site-verification=Up6dQhihCwOZOXcBPREnXiGPxKismv6VBDwjiU5LkSA
- facebook-domain-verification=rd3zqklbf314tizywgyalidwsoac5q
- google-site-verification=OSsdeMjmOUKu6UuDFNO-HATEMfn9jNcqbdRZJbaOOeY
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