Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
3mark.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 03:04:38 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 192.124.249.9 ↩ cloudproxy10009.sucuri.net
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ 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
SOA Record
Raw SOA
ns1293.websitewelcome.com bryan\.propper.3mark.com 2026021701 86400 7200 3600000 86400
Primary NS (mname)
ns1293.websitewelcome.com
Admin Email (rname)
bryan\@propper.3mark.com
Serial
2026021701
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns1293.websitewelcome.com
ns1294.websitewelcome.com
SPF Record
✓ Strict (-all)
v=spf1 include:50490741.spf10.hubspotemail.net include:spf.protection.outlook.com include:_netblocks.mimecast.com ip4:40.134.144.147 ip4:12.138.219.20 ip4:173.252.183.0/24 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms16922386
- MS=3DE81C410ABADA60A7445268C1F50967DEC3A427
- SPFv=spf1 include:50490741.spf10.hubspotemail.net include:spf.protection.outlook.com include:_netblocks.mimecast.com ip4:40.134.144.147 ip4:12.138.219.20 ip4:173.252.183.0/24 -all
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