Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sirs.com
No
None
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 14:51:21 UTC · ↺ Refresh
MX Hostnames
MX Priorities
- : 0
A / AAAA Records
- 165.215.200.75 ↩ k12redirects.proquest.com
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns1.markmonitor.com hostmaster.markmonitor.com 2026021802 86400 3600 2592000 172800
Primary NS (mname)
ns1.markmonitor.com
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2026021802
Refresh
86400s
Retry
3600s
Expire
2592000s
Minimum TTL
172800s
Nameservers (NS)
ns3.markmonitor.com
ns4.markmonitor.com
ns5.markmonitor.com
ns6.markmonitor.com
ns7.markmonitor.com
ns1.markmonitor.com
ns2.markmonitor.com
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- _ofroo2xf8bumh0ucmdamw5ufhuaklj4
- jldz4gdrrtgr1zqvsn9mfknmv30f9qk2
- fbPVr5gozKK+SzM0kCJIeo7qgEgpLFUYcEB8EoHqEjgAptJRV6dGVE0RNZ7kpjKJwXrnM2eP9Sl2eWn3M9TZAg==
- SPFv=spf1 -all
- MS=ms78891039
- MS=ms93131151
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