Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sisfirst.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 20:42:46 UTC · ↺ Refresh
MX Hostnames
- sisfirst-com.mail.protection.outlook.com
MX Priorities
- sisfirst-com.mail.protection.outlook.com: 0
A / AAAA Records
- 199.60.103.154 (no PTR)
- 199.60.103.54 (no PTR)
- 54.174.62.9
Mail Server IPs
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.level3.net dnsteam.level3.com 2026030400 86400 3600 604800 3600
Primary NS (mname)
ns3.level3.net
Admin Email (rname)
dnsteam@level3.com
Serial
2026030400
Refresh
86400s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.level3.net
ns4.level3.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.192.108.164 ip4:115.110.98.162 ip4:147.160.167.0/26 ip4:23.21.109.197 ip4:23.21.109.212 include:mail.zendesk.com include:spf.protection.outlook.com include:spf.us.exclaimer.net include:_spf.salesforce.com include:_spf.qualtrics.com include:562153.spf10.hubspotemail.net include:sendgrid.net include:_spf.paubox.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; fo=0:1:d:s; ri=21600; adkim=r; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
13 records- MS=ms33730309
- google-site-verification=_n2XsJmGDg2XffNxaTzD_7kC-JdCviE5ktad6KoJWIQ
- SPFv=spf1 ip4:66.192.108.164 ip4:115.110.98.162 ip4:147.160.167.0/26 ip4:23.21.109.197 ip4:23.21.109.212 include:mail.zendesk.com include:spf.protection.outlook.com include:spf.us.exclaimer.net include:_spf.salesforce.com include:_spf.qualtrics.com include:562153.spf10.hubspotemail.net include:sendgrid.net include:_spf.paubox.com -all
- b+M+asusnXNlWfjQYgiIFKK5WkLqQ+FKWaix4dtoLvYhc9owQnDv9LUBaJ61Kb6lur442GbFVijGISvnjS5B4A==
- k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9elga6O8HMh2qWsm9w56yt0/SvWaIkVDBboGTr4TqEYzei/bvxvE1BhlE1J27qhe4CKIWcJuioXN+ExJ6D7jtt66BtenBP9Ho7AdHLMrx+UJ9ez4r2L/M8n5+DRr6MwXJ+U+KYT5afZ8zu/z/JvkNK1L9zBra81DldYoDJAlAZwIDAQAB;
- d5385nr33krfbvgj30ydmlq0bp74y0dp
- MS=ms65648506
- 4HQzhOzv0ImxZew8
- docusign=d8e76f45-1b39-4230-be89-bcb747fbff4e
- _twnzzx0vv4u7g8n35lxcao6i3hr272q
- MS=ms90223567
- _u4rlab7mevsuxhfugfnocdsurasiw39
- google-site-verification=sfY0xgm7GnmN6B9NSaZY0vgmGI9zV7nzOqZ--WuXjqs
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