Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
shift.support
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 11:00:29 UTC · ↺ Refresh
MX Hostnames
- shift-support.mail.protection.outlook.com
MX Priorities
- shift-support.mail.protection.outlook.com: 1
A / AAAA Records
- 172.67.179.211 (no PTR)
- 104.21.48.60 (no PTR)
- 2606:4700:3035::ac43:b3d3
- 2606:4700:3035::6815:303c
Mail Server IPs
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
brenda.ns.cloudflare.com dns.cloudflare.com 2398665450 10000 2400 604800 1800
Primary NS (mname)
brenda.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398665450
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
brenda.ns.cloudflare.com
igor.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:spf.exclaimer.net ip4:74.3.181.10 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 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
3 records- pax8-verification=66172eb9-12bf-306b-a72b-518d4417f211
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:spf.exclaimer.net ip4:74.3.181.10 -all
- google-site-verification=dUZfp8gFtuuedkJcTpUjuXUwPr3PGZwCVUIExU6uVxs
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