mail.mcourses.ru - robtex.com
mail.mcourses.ru
mcourses.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.189.114.13🇷🇺 RU-CENTER91.189.114.0/23 RU-NIC-HOSTING | ||||||
| NS | ns3.nic.ru ⭐ | ||||||
| NS | ns4.nic.ru | ||||||
| NS | ns8.nic.ru | ||||||
| MX | mx02.nicmail.ru ⭐ | ||||||
| MX | mx01.nicmail.ru(10) | ||||||
| MX | mx03.nicmail.ru(20) | ||||||
| TXT | _globalsign-domain-verification=8qMUbyQhZ7edUEWzg_ZCUXwQB-Sdl1MVslN4375vjB | ||||||
| TXT | v=spf1 redirect=nicmail.ru | ||||||
| SOA | ns3.nic.ruadmin@mcourses.ru serial=1690308337 | ||||||
Previously MX for
Same first word
Similar names
DNS History
10 records (7 active, 3 former)
●MXmx01.nicmail.ru2026-03-04 → 2026-04-12 · 2 obs
● 2026-04-12 02:52:38
●MXmx02.nicmail.ru2026-03-04 → 2026-04-12 · 2 obs
● 2026-04-12 02:52:38
●MXmx03.nicmail.ru2026-03-04 → 2026-04-12 · 2 obs
● 2026-04-12 02:52:38
○A109.70.26.372015-11-17 → 2015-11-17 · 4 obs
● 2015-11-17 17:35:08
○ 2016-02-07 23:09:36
○ 2026-04-12 02:52:38
○A194.85.61.762015-11-17 → 2015-11-17 · 4 obs
● 2015-11-17 17:35:08
○ 2016-02-07 23:09:36
○ 2026-04-12 02:52:38
○A77.81.181.82015-07-21 → 2015-07-21 · 3 obs
○ 2015-11-17 17:35:08
○ 2026-04-12 02:52:38
●A91.189.116.402026-03-04 → 2026-04-12 · 3 obs
● 2026-03-04 16:16:52
● 2026-04-12 02:52:38
●A91.189.116.412026-03-04 → 2026-04-12 · 3 obs
● 2026-03-04 16:16:52
● 2026-04-12 02:52:38
●A91.189.116.422026-03-04 → 2026-04-12 · 3 obs
● 2026-03-04 16:16:52
● 2026-04-12 02:52:38
●A91.189.116.432026-03-04 → 2026-04-12 · 3 obs
● 2026-03-04 16:16:52
● 2026-04-12 02:52:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net... | - |
| mcourses.ru | ns3.nic.ru, ns4.nic.ru, ns8.nic.ru | - |
✅ Authoritative Response
Server:194.85.61.20
NS records: ns3.nic.ru, ns4.nic.ru, ns8.nic.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mcourses.ru (unsigned zone)
⏱️ Timing
Total: 1268ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 91.189.116.40, 91.189.116.42... |
| MX | 3 | mx02.nicmail.ru (pri: 5), mx01.nicmail.ru (pri: 10)... |
| TXT | 1 | v=spf1 redirect=nicmail.ru |
Analysis
IP Addresses
mail.mcourses.ru maps to four IP numbers: 91.189.116.40, 91.189.116.41, 91.189.116.42 and 91.189.116.43.
Other host names such as yourmail.ru, mail.zaibi.ru, mail.pride-royal.ru, mail.njm-project.ru and mail.boheme.ru share IPs with mail.mcourses.ru.
Mail Servers
mail.mcourses.ru is handled by three mail servers: mx01.nicmail.ru, mx02.nicmail.ru and mx03.nicmail.ru.
mail.mcourses.ru shares at least partially some mail servers with other domains, for instance itrc-iso.com, skynetwork-msk.ru, wspetrol.ru, h007376578.nichost.ru and orgritual.nichost.ru.
Host names with four IP numbers:
- mx01.nicmail.ru points to: 91.189.116.13, 91.189.116.14, 91.189.116.15 and 91.189.116.16
- mx02.nicmail.ru points to: 91.189.116.13, 91.189.116.14, 91.189.116.15 and 91.189.116.16
Host names with one IP number:
- mx03.nicmail.ru points to: 91.189.116.16
Host names that point to 91.189.116.13:
- mx01.nicmail.ru and mx02.nicmail.ru
Host names that point to 91.189.116.14:
- mx01.nicmail.ru and mx02.nicmail.ru
Host names that point to 91.189.116.15:
- mx01.nicmail.ru and mx02.nicmail.ru
Host names that point to 91.189.116.16: