Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
greco.com.tw
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-10-30 07:38:36 UTC · ↺ Refresh
MX Hostnames
- sqrsrv.greco.com.tw
MX Priorities
- sqrsrv.greco.com.tw: 10
A / AAAA Records
- 60.248.232.242 (no PTR)
Mail Server IPs
- 60.248.232.243 (no PTR)
SOA Record
Raw SOA
greco.com.tw admin.greco.com.tw 1790731630 1800 900 604800 38400
Primary NS (mname)
greco.com.tw
Admin Email (rname)
admin@greco.com.tw
Serial
1790731630
Refresh
1800s
Retry
900s
Expire
604800s
Minimum TTL
38400s
Nameservers (NS)
ns.greco.com.tw
dns.greco.com.tw
SPF Record
✓ Strict (-all)
v=spf1 ip4:60.248.232.242 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=0AB51FC6FAE2C489850002DCB485ED81DF7FC912
- v=spf1 ip4:60.248.232.242 -all
- SPFv=spf1 ip4:60.248.232.242 a mx -all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for greco.com.tw
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits