Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jeffersondc.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 10:27:15 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 76.223.117.144 ↩ aac5c226c80f970ba.awsglobalaccelerator.com
- 13.248.244.187 ↩ aac5c226c80f970ba.awsglobalaccelerator.com
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns15.worldnic.com namehost.worldnic.com 126031614 10800 3600 604800 3600
Primary NS (mname)
ns15.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031614
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns15.worldnic.com
ns16.worldnic.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:63.123.93.146 ip4:65.240.235.146 ip4:209.167.53.152 include:us._netblocks.mimecast.com include:spf.synxis.com include:amazonses.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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- nIvmfG4sQawOx1bs1aLe5lVNLZcPChq7p8i10L39Yc/d5qgCS/Omp5lakwubImRn/hXJLEA/z+lTrsZrdMSqIg==
- google-site-verification=44YQcFam8G1RmCG6GUpW7R5ee_ibTxPFn8IxtA5svUE
- MS=ms71348880
- SPFv=spf1 ip4:63.123.93.146 ip4:65.240.235.146 ip4:209.167.53.152 include:us._netblocks.mimecast.com include:spf.synxis.com include:amazonses.com ~all
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