Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rivercitylabs.net
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 23:41:51 UTC · ↺ Refresh
MX Hostnames
- au-smtp-inbound-2.mimecast.com
- au-smtp-inbound-1.mimecast.com
MX Priorities
- au-smtp-inbound-1.mimecast.com: 10
- au-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 172.67.158.67 (no PTR)
- 104.21.73.55 (no PTR)
- 2606:4700:3036::6815:4937 (no PTR)
- 2606:4700:3030::ac43:9e43 (no PTR)
Mail Server IPs
- 103.96.20.26 ↩ au-smtp-inbound-2.mimecast.com
- 103.96.22.26 ↩ au-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
angela.ns.cloudflare.com dns.cloudflare.com 2399048115 10000 2400 604800 1800
Primary NS (mname)
angela.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399048115
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
angela.ns.cloudflare.com
vin.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:spf.au.exclaimer.net include:au._netblocks.mimecast.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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
6 records- MS=ms31438481
- adobe-idp-site-verification=84ce22986d0c3328bda4cfb633b48481a8a385d40867109e4e533be5eccbb3bc
- cisco-ci-domain-verification=319cc5115bcc4816c7d06bbf91a64e7158d55e8dfb8e7ca3408bd7346f2682e1
- google-site-verification=vuVi696sRJQwnpjdnD1djkc9E3JJPKBqIbcAaoz71-s
- SPFv=spf1 mx include:spf.protection.outlook.com include:spf.au.exclaimer.net include:au._netblocks.mimecast.com -all
- MS=ms20529748
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