Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rsu.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 01:51:13 UTC · ↺ Refresh
MX Hostnames
- rsu-edu.mail.protection.outlook.com
MX Priorities
- rsu-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.177.231 (no PTR)
- 104.21.59.131 (no PTR)
- 2606:4700:3033::6815:3b83
- 2606:4700:3037::ac43:b1e7
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
SOA Record
Raw SOA
lex.ns.cloudflare.com dns.cloudflare.com 2398904164 10000 2400 604800 1800
Primary NS (mname)
lex.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398904164
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lex.ns.cloudflare.com
rafe.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:204.14.234.64/28 ip4:204.14.232.64/28 ip4:182.50.78.64/28 ip4:96.43.144.64/31 ip4:96.43.148.64/31 include:outboundmail.blackbaud.net include:_spf.academicworks.com include:relay.mailchannels.net include:sendgrid.net ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:spf.protection.outlook.com include:_spf.messagegears.net ip4:198.187.154.0/24 ip4:198.204.126.0/24 ip4:164.58.253.0/24 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; ri=604800
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
19 records- tdieltva93bfmki2qm3jkvd7c9
- have-i-been-pwned-verification=e649642a33b2598343920edc63eeb6f0
- mtupmukevntgt45nqb8j0reb37
- spycloud-domain-verification=5af55e7d-daec-47bc-b866-9af2bc477313
- jo1qt30vd8np8a2s398jvgeduv
- ebk5s423bie6vl83sdr3ehatvo.
- MS=E154E070F57E0BB06364A3ADC261F3177917F906
- atlassian-sending-domain-verification=401e1037-f04a-4bdf-af9a-166b0186249b
- 1password-site-verification=CGQFP3K3GFGOLB5YJADCAH545U
- rhjk9n4sucrp830louci8i7rje
- 6ok8sd8utep5rmmum62fiucem5.
- 34e87uhpc9n85gm3ocvu4am2ft.
- cisco-ci-domain-verification=e8a71bf6f27afab4a7d63ffc246ee7e4ab3b00a715cd61bebf100d545e798e6
- SPFv=spf1 mx ip4:204.14.234.64/28 ip4:204.14.232.64/28 ip4:182.50.78.64/28 ip4:96.43.144.64/31 ip4:96.43.148.64/31 include:outboundmail.blackbaud.net include:_spf.academicworks.com include:relay.mailchannels.net include:sendgrid.net ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:spf.protection.outlook.com include:_spf.messagegears.net ip4:198.187.154.0/24 ip4:198.204.126.0/24 ip4:164.58.253.0/24 -all
- 5cnmmpj08vvsghfmh7vp5rjoi7
- atlassian-domain-verification=CWWnRa7emXp5QuvFauWZ312VXw2DnOXVr8znCmzizU5Xm9YcIne8TCxFcIQDpg0K
- adobe-idp-site-verification=7e1dbe9764f8836f3818dc66ed80eedb05a8f2990b99292235b5443b55fcfb01
- blnd29fof8j6o49sedkedbt3rc
- H6064QVQOM4CA0A61THPLRK2D1
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