dynacolor.co.jp

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago

Domain

dynacolor.co.jp

Valid Email Server

Yes

Has MX Records

✓ Yes

Email Provider

Unknown

Disposable

Free Provider

Role Account

⚠ Yes

Email Relay

Privacy Protected

Did you mean: [email protected]

Checked via [email protected] · 2026-03-26 17:59:13 UTC · ↺ Refresh

MX Hostnames

smtp.dynacolor.co.jp

MX Priorities

smtp.dynacolor.co.jp: 10

A / AAAA Records

182.16.226.147 ↩ onx06.atw.ne.jp

Mail Server IPs

182.16.226.147 ↩ onx06.atw.ne.jp

SOA Record

                  Raw SOA
                  ns0.atw.jp hostmaster.atw.jp 2020072001 10800 1800 3600000 600                

Primary NS (mname)

ns0.atw.jp

Admin Email (rname)

hostmaster@atw.jp

Serial

2020072001

Refresh

10800s

Retry

1800s

Expire

3600000s

Minimum TTL

600s

Nameservers (NS)

                      ns2.atw.jp                    

                      ns3.atw.jp                    

                      ns1.atw.jp                    

SPF Record

✓ Soft Fail (~all)

                    v=spf1 +ip4:182.16.226.147 ~all                  

📊 DNS lookups: 0/10

~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

1 record

SPFv=spf1 +ip4:182.16.226.147 ~all

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