Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
xlibris.com
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 06:55:41 UTC · ↺ Refresh
MX Hostnames
- cluster5a.us.messagelabs.com
- cluster5.us.messagelabs.com
MX Priorities
- cluster5a.us.messagelabs.com: 20
- cluster5.us.messagelabs.com: 10
A / AAAA Records
- 206.53.245.183 ↩ www.xlibris.com
Mail Server IPs
- 34.75.172.113 ↩ 113.172.75.34.bc.googleusercontent.com
- 67.219.250.217 ↩ mail950.messagelabs.com
- 67.219.247.195 ↩ mail927.messagelabs.com
- 67.219.250.221 ↩ mail947.messagelabs.com
- 67.219.246.211 ↩ mail910.messagelabs.com
- 67.219.246.212 ↩ mail911.messagelabs.com
- 67.219.247.99 ↩ mail922.messagelabs.com
SOA Record
Raw SOA
ns1.authorsolutions.com asidomains.authorsolutions.com 2007092748 14400 3600 1209600 300
Primary NS (mname)
ns1.authorsolutions.com
Admin Email (rname)
asidomains@authorsolutions.com
Serial
2007092748
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns1.authorsolutions.com
ns2.authorsolutions.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:206.53.252.80 ip4:206.53.249.125 include:cust-spf.exacttarget.com include:_spf.salesforce.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s; adkim=s; aspf=s
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
4 records- A0U0T25154
- MS=ms74426722
- ZOOM_verify_GfkDlRXhFjllfhixVAmcAP
- SPFv=spf1 ip4:206.53.252.80 ip4:206.53.249.125 include:cust-spf.exacttarget.com include:_spf.salesforce.com include:spf.protection.outlook.com -all
Full email verification for xlibris.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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