smtpproxy.ch - robtex.com
smtpproxy.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 16.62.100.40🇨🇭 Amazon16.62.0.0/15 EC2 ZRH Prefix | ||||||
| PTR | ns1.mc4web.net | ||||||
| NS | ns2.mc4web.net ⭐ | ||||||
| A | 16.62.171.163🇨🇭 Amazon16.62.0.0/15 EC2 ZRH Prefix | ||||||
| PTR | ns2.mc4web.net | ||||||
| NS | ns.smtpproxy.ch ⚠️ Not in parent delegation | ||||||
| A | 16.62.100.40🇨🇭 Amazon16.62.0.0/15 EC2 ZRH Prefix | ||||||
| PTR | ns1.mc4web.net | ||||||
| NS | ns1.mc4web.net | ||||||
| A | 16.62.100.40🇨🇭 Amazon16.62.0.0/15 EC2 ZRH Prefix | ||||||
| PTR | ns1.mc4web.net | ||||||
| NS | ns3.mc4web.net ⚠️ Not in zone NS records | ||||||
| A | 16.62.185.156🇨🇭 Amazon16.62.0.0/15 EC2 ZRH Prefix | ||||||
| PTR | ns3.mc4web.net | ||||||
| MX | mail.smtpproxy.ch ⭐ | ||||||
| A | 16.62.100.40🇨🇭 Amazon16.62.0.0/15 EC2 ZRH Prefix | ||||||
| PTR | ns1.mc4web.net | ||||||
| TXT | v=spf1 a mx +a:mc4web.net include:relay.mailchannels.net ?all | ||||||
| SOA | ns2.mc4web.netinfo@mc4.ch serial=1775508320 | ||||||
ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.ch ⭐ | ||||||
| NS | b.nic.ch | ||||||
| NS | d.nic.ch | ||||||
| NS | e.nic.ch | ||||||
| NS | f.nic.ch | ||||||
| SOA | a.nic.chdns-operation@switch.ch 2026-04-24 #26 | ||||||
Subdomains
Same first word
smtpproxy.ch |
smtpproxy.de |
DNS History
6 records (6 active, 0 former)
●NSns.smtpproxy.ch2026-02-18 → 2026-04-24 · 2 obs
● 2026-04-24 11:40:56
●NSns1.mc4web.net2026-02-18 → 2026-04-24 · 2 obs
● 2026-04-24 11:40:56
●NSns2.mc4web.net2026-02-18 → 2026-04-24 · 2 obs
● 2026-04-24 11:40:56
●NSns3.mc4web.net2026-02-18 → 2026-04-24 · 2 obs
● 2026-04-24 11:40:56
●MXmail.smtpproxy.ch2026-02-18 → 2026-04-24 · 2 obs
● 2026-04-24 11:40:56
●A16.62.100.402026-02-18 → 2026-04-24 · 2 obs
● 2026-04-24 11:40:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| smtpproxy.ch | ns3.mc4web.net, ns2.mc4web.net, ns1.mc4web.net | - |
✅ Authoritative Response
Server:16.62.185.156
NS records: ns3.mc4web.net, ns2.mc4web.net, ns1.mc4web.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for smtpproxy.ch (unsigned zone)
⏱️ Timing
Total: 1105ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 16.62.100.40 |
| NS | 3 | ns2.mc4web.net, ns.smtpproxy.ch... |
| MX | 1 | mail.smtpproxy.ch (pri: 10) |
| TXT | 1 | v=spf1 a mx +a:mc4web.net include:relay. |
| SOA | 1 | ns2.mc4web.net info.mc4.ch |
Analysis
Hierarchy
smtpproxy.ch is the parent of ns.smtpproxy.ch and mail.smtpproxy.ch.
IP Addresses
smtpproxy.ch points to an IP address: 16.62.100.40.
other host names include ns.industrie9.ch, mail.linkx.ch, ns.langmeier-ag.ch, mail.container-haus.ch and mail.fwuf.ch; they share IP numbers with smtpproxy.ch.
Name Servers
smtpproxy.ch delegates to four name servers: ns.smtpproxy.ch, ns1.mc4web.net, ns2.mc4web.net and ns3.mc4web.net.
smtpproxy.ch at least partially shares name servers with other domains, for instance linkx.ch, andar.ch, mc4web.net, nordisk.ch and mc4.ch.
These name servers are commonly used alongside ns4.mc4web.net, ns.container-haus.ch and ns.stuessi.ch.
Host names with one IP number:
Host name ns.smtpproxy.ch points to 16.62.100.40.
Host name ns1.mc4web.net points to 16.62.100.40.
Host name ns2.mc4web.net points to 16.62.171.163.
Host name ns3.mc4web.net points to 16.62.185.156.
Host names that point to 16.62.100.40: ns.smtpproxy.ch and ns1.mc4web.net.
Mail Servers
smtpproxy.ch is handled by a single mail server, mail.smtpproxy.ch.
The host name mail.smtpproxy.ch points to IP 16.62.100.40.