Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
1stfed.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 10:45:27 UTC · ↺ Refresh
MX Hostnames
- east.smtp.mx.o365.serverdata.net
MX Priorities
- east.smtp.mx.o365.serverdata.net: 10
A / AAAA Records
- 104.18.24.218 (no PTR)
Mail Server IPs
- 64.78.25.118 ↩ east.smtp.mx.o365.serverdata.net
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009010490 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010490
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns15.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns11.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns12.dnsmadeeasy.com
ns14.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 include:_u.1stfed.com._spf.dmarclc.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=0:1:d:s;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- SPFv=spf1 include:_u.1stfed.com._spf.dmarclc.com -all
- MS=ms87132416
- knei8cvihh3v7e01ei5164p4s4
- finicity_partner_id:2445584457303
- include:deliverygateways.mastercard.com
Full email verification for 1stfed.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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