Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
pttc.com.tw
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:59:26 UTC · ↺ Refresh
MX Hostnames
- pttc-com-tw.mail.protection.outlook.com
MX Priorities
- pttc-com-tw.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
SOA Record
Raw SOA
nsp1.hinet.net hostmaster.hinet.net 1773514802 300 1800 1209600 3600
Primary NS (mname)
nsp1.hinet.net
Admin Email (rname)
hostmaster@hinet.net
Serial
1773514802
Refresh
300s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
nsp2.hinet.net
nsp1.hinet.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:61.218.105.147 ip4:61.222.194.13 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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- KSSKKA0XS9P4Y8ZJ3C2B3ZIDGF3P5FZOT9I6M4XH
- WrOEKEvi0ejXHHd5Zi67-X4R5lHtmIigV7XUQNY6F0E
- xfNjPkAtPC4q73YV9hzugGf4234cn5NEZ9N9qnlCZ5Q
- SPFv=spf1 include:spf.protection.outlook.com ip4:61.218.105.147 ip4:61.222.194.13 -all
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