Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
twccontracting.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 04:58:55 UTC · ↺ Refresh
MX Hostnames
- antispam2.concentus.net
- antispam1.concentus.net
MX Priorities
- antispam2.concentus.net: 30
- antispam1.concentus.net: 10
A / AAAA Records
- 162.159.135.42 (no PTR)
Mail Server IPs
- 64.94.64.133 ↩ antispam2.concentus.net
- 64.94.64.139 ↩ antispam1.concentus.net
SOA Record
Raw SOA
ns39.domaincontrol.com dns.jomax.net 2025021701 28800 7200 604800 3600
Primary NS (mname)
ns39.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025021701
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns39.domaincontrol.com
ns40.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:63.247.82.210 +ip4:63.247.82.220 +ip4:205.251.139.10 +ip4:64.94.65.83 +ip4:108.28.193.234 include:spf.serverdata.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- 4rmt22omod45espsc13hbe90o1
- MS=ms82588884
- SPFv=spf1 +a +mx +ip4:63.247.82.210 +ip4:63.247.82.220 +ip4:205.251.139.10 +ip4:64.94.65.83 +ip4:108.28.193.234 include:spf.serverdata.net -all
- ca3-0ad33cca20c7419488976667dc918e4b
- MS=ms69753888
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