Summary
- Hostname
- mail.sacomjsc.com.vn
- ASN
- AS38732
- Organization
- CMC Telecom Infrastructure Company
- Network
- CMCTELECOM-VN
- Range
- 124.158.0.0 - 124.158.15.255
- /24 block
- 124.158.4.0/24
- Country
- VN
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 124.158.4.14 in blacklists
| List | Status |
|---|---|
| zen.spamhaus.org | Not listed |
| bl.spamcop.net | Not listed |
| black.junkemailfilter.com | Not listed |
| multi.surbl.org | Not listed |
| dnsbl.sorbs.net | Not listed |
| b.barracudacentral.org | Not listed |
| dnsbl.tornevall.org | Not listed |
| dnsbl.httpbl.org | Not listed |
| dnsbl-1.uceprotect.net | Not listed |
| dnsbl-2.uceprotect.net | Not listed |
| dnsbl-3.uceprotect.net | Not listed |
| v4.fullbogons.cymru.com | Not listed |
| bl.blocklist.de | Not listed |
| rbl.blockedservers.com | Not listed |
What is a blacklist (RBL)?
An RBL (Real-time Blackhole List), also known as a DNSBL (DNS-based Blackhole List), is a mechanism used to fight spam by blocking e-mails coming from sources known to send spam. RBLs are databases listing the IP addresses deemed responsible for sending unsolicited e-mail. Mail server administrators use these lists to filter incoming e-mails by checking whether the sender's IP address appears in one or more RBLs. If it does, the e-mail may be rejected or subjected to additional checks.
There are different types of RBLs, each with its own criteria for listing IP addresses. Some focus on IP addresses that send spam directly, while others list IP addresses belonging to networks known to host computers infected with malware and used as bots to send spam. RBL operators keep their lists up to date through automatic and manual contributions, and IP address owners can often request removal from a list if they believe the listing is unjustified.
WHOIS data for 124.158.4.14
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '124.158.0.0 - 124.158.15.255'
% Abuse contact for '124.158.0.0 - 124.158.15.255' is '[email protected]'
inetnum: 124.158.0.0 - 124.158.15.255
netname: CMCTELECOM-VN
descr: CMC Telecom Infrastructure Company
descr: CMC Tower, Duy Tan, Cau Giay, Hanoi, Vietnam
country: VN
admin-c: HVA2-AP
tech-c: NVH31-AP
status: ALLOCATED PORTABLE
remarks: send spam and abuse report to [email protected]
mnt-by: MAINT-VN-VNNIC
mnt-lower: MAINT-VN-VNNIC
mnt-routes: MAINT-VN-VNNIC
mnt-irt: IRT-VNNIC-AP
last-modified: 2023-08-31T05:00:21Z
source: APNIC
irt: IRT-VNNIC-AP
address: Ha Noi, VietNam
phone: +84-24-35564944
fax-no: +84-24-37821462
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: NTTT1-AP
tech-c: NTTT1-AP
auth: # Filtered
mnt-by: MAINT-VN-VNNIC
last-modified: 2026-04-21T02:07:47Z
source: APNIC
person: Hoang Viet Anh
address: CMCTELECOM-VN
country: VN
phone: +84-366235766
e-mail: [email protected]
nic-hdl: HVA2-AP
mnt-by: MAINT-VN-VNNIC
last-modified: 2023-08-31T04:22:33Z
source: APNIC
person: Nguyen Van Hieu
address: CMCTELECOM-VN
country: VN
phone: +84-968189689
e-mail: [email protected]
nic-hdl: NVH31-AP
mnt-by: MAINT-VN-VNNIC
last-modified: 2022-08-28T04:27:35Z
source: APNIC
% Information related to '124.158.4.0/24AS38732'
route: 124.158.4.0/24
descr: CMCTELECOM-VN
origin: AS38732
mnt-by: MAINT-VN-VNNIC
last-modified: 2022-09-16T17:45:50Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-UK2)
Related domain names
Domains mentioned in the reverse DNS and the WHOIS of 124.158.4.14.
What is an IP address?
An IP address is a unique identifier on the internet that identifies a server or an internet user. Here the IP address is 124.158.4.14: it may be the unique address used to reach a website, or the unique address of an internet user.
An SMTP server (a server used to send e-mails) must have a reverse DNS record associated with its IP address