Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
now.optum.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 23:42:09 UTC · ↺ Refresh
MX Hostnames
- now-optum-com.mail.protection.outlook.com
MX Priorities
- now-optum-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.33.186.135 ↩ afa7f374f51cc8991.awsglobalaccelerator.com
- 15.197.167.90 ↩ afa7f374f51cc8991.awsglobalaccelerator.com
Mail Server IPs
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1363.awsdns-42.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1363.awsdns-42.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1639.awsdns-12.co.uk
ns-747.awsdns-29.net
ns-84.awsdns-10.com
ns-1363.awsdns-42.org
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; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- MS=ms88782952
- google-site-verification=cUC0KQpm6nwS0OKrQYdIxy8oKBHQitH8yK_OxCNBTjQ
- google-site-verification=d8I6SovAMvjA2gU-qXPXxoQax7kSy0DrK4qMdpY2UN8
- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for now.optum.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits