Domain Overview
DNS: ✓ 16h ago
Checker: ✓ 16h ago
mastermech.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 06:34:30 UTC · ↺ Refresh
MX Hostnames
- mastermech-ca.mail.protection.outlook.com
MX Priorities
- mastermech-ca.mail.protection.outlook.com: 0
A / AAAA Records
- 198.49.23.145 (no PTR)
- 198.49.23.144 (no PTR)
- 198.185.159.144
- 198.185.159.145
Mail Server IPs
- 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.webnames.ca postmaster.webnames.ca 1777489596 21600 180 1209600 3600
Primary NS (mname)
ns1.webnames.ca
Admin Email (rname)
postmaster@webnames.ca
Serial
1777489596
Refresh
21600s
Retry
180s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns3.webnames.ca
ns2.webnames.ca
ns1.webnames.ca
SPF Record
✓ Strict (-all)
v=spf1 ip4:208.98.238.26 ip4:208.82.249.66 ip4:206.75.187.248 include:spf.protection.outlook.com include:_spf.cmsa.buildops.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=r; aspf=r; pct=100; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
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
2 records- MS=ms30434363
- SPFv=spf1 ip4:208.98.238.26 ip4:208.82.249.66 ip4:206.75.187.248 include:spf.protection.outlook.com include:_spf.cmsa.buildops.com -all
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