Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

smtp security for hmail server

Posted on 2016-09-28
1
15 Views
Last Modified: 2016-10-13
we are hosting multiple domain email server inside our company ,we found that our IP address has been blacklist .May i know how to configure only the domain user able to send msg .Because l realize actually i just telnet smtp port then can use the server send msg without knowing the username and password.
0
Comment
Question by:YaYangTeah
1 Comment
 
LVL 35

Accepted Solution

by:
Kimputer earned 500 total points
ID: 41819740
Ouch, any internet facing SMTP server should have some kind of security, and you should have done this the moment you decided you wanted your SMTP server to relay.
What you are searching for is in the Settings > Advanced > IP Ranges. Find the IP range that's causing this (by default it's called Internet) and enable the several Require SMTP Authentication checkboxes (leave external to local blank, otherwise incoming mail will stop).
0

Featured Post

Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Utilizing an array to gracefully append to a list of EmailAddresses
Pop culture is prime bait for hackers seeking to infect user’s computers and mobile devices with malicious malware. Hackers know exactly what the latest trends are online and know how to use them to their advantage.
Familiarize people with the process of utilizing SQL Server views from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Access…
In this video we show how to create an Address List in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Organization >> Ad…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question