Re: [webmin-l] Virtualmin Email Doesn't Work

[<sou...@ro...>]

Kimberly, hi.

Both servers if I try to send an
> email to a user the emails just disappear.


The mail messages shouldn't disappear. Check Servers/Postfix/Mail Queue.

Now on one server I can get  Thunderbird to connect and pull the mail
> settings and on the other it can't.


That must be Firewall.

Did you install Virtualmin using install script or simply installed it as a
package? If latter, things might and will be broken, and require you to do
things manually that install script does automatically.

The simple thing is to run install script
<http://software.virtualmin.com/gpl/scripts/install.sh> on the clean
machine.
https://www.virtualmin.com/download.html

In case you can not do that, then you would need to debug things around and
fix it manually.

1. Make sure that Postfix is running.
2. Try to run *tcpdump* while connecting to your host?
3. Most VPS companies prohibit and block outbound traffic on port 25. Could
that be your issue?
4. Try to adjust your Firewall (iptables) to make sure it permits
connections to port 25:
     4.1. Run: *firewall-cmd –zone=public –add-port=25/tcp –permanent*
     * To check currently used zone run: *firewall-cmd --get-default-zone*

You could use a module (UI) to manage FirewallD on your Webmin system.
(type for Firewall in search panel in navigation menu)
You could install ConfigServer Security & Firewall
<https://configserver.com/cp/csf.html> (csf) to manage your iptable rules
and do many other things just using UI (no extra knowledge required).
Authentic Theme has extensive support for it.

Let me know if I could provide any more help.

Happy New Year,
Ilia