Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smiletutor.sg
Yes
✓ Yes
Zoho
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 17:15:55 UTC · ↺ Refresh
MX Hostnames
- mx3.zoho.com
- mx2.zoho.com
- mx.zoho.com
MX Priorities
- mx3.zoho.com: 30
- mx.zoho.com: 10
- mx2.zoho.com: 20
A / AAAA Records
- 104.26.12.210 (no PTR)
- 172.67.71.123 (no PTR)
- 104.26.13.210 (no PTR)
- 2606:4700:20::ac43:477b (no PTR)
- 2606:4700:20::681a:dd2 (no PTR)
- 2606:4700:20::681a:cd2 (no PTR)
Mail Server IPs
- 136.143.191.44 ↩ mx3.zohomail.com
- 136.143.183.44 ↩ mx.zoho.com
SOA Record
Raw SOA
adel.ns.cloudflare.com dns.cloudflare.com 2398616631 10000 2400 604800 1800
Primary NS (mname)
adel.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398616631
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
adel.ns.cloudflare.com
simon.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.mlsend.com include:servers.mcsv.net include:zoho.com include:mailgun.org ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
k1._domainkey
zoho._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=JZmtS7MgRAxR4r7JXHrHkstxbX4KNg3XDbBH9gFaHdw
- google-site-verification=TG8nFi-JNCDsM44m4Oel34cjjWXqvP14ZuFuqvPw3vU
- SPFv=spf1 include:_spf.mlsend.com include:servers.mcsv.net include:zoho.com include:mailgun.org ~all
- google-site-verification=AyZwiTeTbIkKhyeYu8oUrmG1G2uOwhFpoafyilknKb8
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