Comments on: How to Install iRedMail (Mail Server) on CentOS 7 / RHEL 7

By: Pradeep Kumar

Pradeep Kumar — Fri, 18 May 2018 00:51:35 +0000

Hi Manoj,

It looks like one of the system from LAN is sending thousand of emails or spam emails to your mail server. This usually happens because of virus, check the email headers , there you will find the IP address of the affected system, disconnect it from the LAN and delete all emails from the queue. Try to whitelist your mail server public IP by sending whitelist request via portals.

Enable & Configure SpamAssassin on your mail server and configure Linux firewall only if there is no hardware firewall in your env and allow only specific ports.

By: Manoj Kanjookaran

Manoj Kanjookaran — Wed, 16 May 2018 10:40:09 +0000

Hi I installed the server following this tutorial. It worked perfect for last 6 months . But 2 days ago the end user told he gets thousands of Mail Delivery Failure messages being sent to his mail box. I suspect my server is sending lots of spam emails out and I get the logs saying my IP is black listed. I am planning to reinstall everything but how do I secure from the spam attacks again..? What about SpamAssassin ?? Will this prevent this..?? Configuring the linux firewall will help..?? Please please advise.

By: Pradeep Kumar

Pradeep Kumar — Thu, 05 Oct 2017 01:04:25 +0000

In reply to Gary Braniff. Hi Gary, Configure the MX record for your domain in the DNS and also make sure user exists on your mail server.

By: Gary Braniff

Gary Braniff — Wed, 04 Oct 2017 10:36:48 +0000

Hello,

I have installed iRedMail and I can send email without any problems but I can’t receive email. Would you happen to know of any reason this could happen?

Thanks in advance,
Gary B

By: Pradeep Kumar

Pradeep Kumar — Wed, 27 Sep 2017 03:30:15 +0000

Hi Sandeep,

– is your iredmail installation successful…?
– Update your server’s hostname either in DNS or /etc/hosts file.
– Also make sure https (443) port is allowed in OS firewall

By: Sandeep

Sandeep — Tue, 26 Sep 2017 08:58:28 +0000

I install the iRedmail but cant access server/browser

By: Pradeep Kumar

Pradeep Kumar — Thu, 08 Jun 2017 13:42:22 +0000

In reply to Manoj. It should work, please make sure all users are created on the domain as well.

By: Manoj

Manoj — Thu, 08 Jun 2017 09:32:52 +0000

Hi This was really useful . Thank you and I am planning to change my exchange server and use this as my mail server. Domain is active and I have the public IP configured . A firewall rule to point my exchange server is already there . So if I just create a same domain name and set the IP of my exchange server to this server, will everything work ..??

By: Ricardo Tapia

Ricardo Tapia — Thu, 18 May 2017 22:54:02 +0000

I currently install the iredmail on the local centos 7 server and it works fine. Now I have acquired domain. How can I configure the mail server for that domain. I have a static IP and it also publishes.

I would also like to know how I could run it on the local centos 7 server. Please help me set it up.

By: Pradeep Kumar

Pradeep Kumar — Mon, 27 Mar 2017 02:56:13 +0000

It seems like DNS records for your sever’s hostname ‘mail.musicout.com’ is configured properly. In your DNS server do A record entry of your mentioned hostname. In Case DNS server is not configured then do below entry in your system host file.

IP_Address_of_Server mail.musicout.com