Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blackbird-digital.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 10:47:15 UTC · ↺ Refresh
MX Hostnames
- mx1.emailsrvr.com
- mx2.emailsrvr.com
MX Priorities
- mx1.emailsrvr.com: 10
- mx2.emailsrvr.com: 20
A / AAAA Records
- 104.21.74.15 (no PTR)
- 172.67.152.178 (no PTR)
- 2606:4700:3035::ac43:98b2
- 2606:4700:3035::6815:4a0f
Mail Server IPs
- 146.20.161.1 ↩ mx1.emailsrvr.com
- 108.166.43.1 ↩ mx1.emailsrvr.com
- 184.106.54.1 ↩ mx1.emailsrvr.com
- 173.203.187.1 ↩ mx1.emailsrvr.com
- 146.20.161.2 ↩ mx2.emailsrvr.com
- 108.166.43.2 ↩ mx2.emailsrvr.com
- 184.106.54.2 ↩ mx2.emailsrvr.com
- 173.203.187.2 ↩ mx2.emailsrvr.com
SOA Record
Raw SOA
cory.ns.cloudflare.com dns.cloudflare.com 2399290213 10000 2400 604800 1800
Primary NS (mname)
cory.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399290213
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
vita.ns.cloudflare.com
cory.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.mlsend.com ip4:67.225.189.218 ip4:67.217.37.0/24 ip4:144.121.168.2 include:emailsrvr.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; sp=none;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 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
2 records- SPFv=spf1 include:_spf.mlsend.com ip4:67.225.189.218 ip4:67.217.37.0/24 ip4:144.121.168.2 include:emailsrvr.com -all
- MS=ms26278480
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