webadmin-list

[webmin-l] Virtualmin Email Doesn't Work

[Kimberly <kim...@gm...>]

I have two different servers; one on a VPS, one on a dedicated server, 
both using CentOS 7 and Virutalmin and on both servers emails don't 
work.  This is a Virtualmin issue.  Both servers if I try to send an 
email to a user the emails just disappear.  They don't bounce back, they 
don't show up in the user's inbox, they just disappear.  Furthermore, 
the whole send email client configuration doesn't work; I even checked 
forwarding.  The email client configuration does not show up either on 
the server or the forward email.  Now on one server I can get 
thunderbird to connect and pull the mail settings and on the other it 
can't.  However, on the server that does, it keeps telling me that the 
password is wrong even when I added it manually in sight and copy and 
past into Thunderbird.  Is it the default settings in firewalld that 
Virtualmin creates?  I don't know.  What I do know is that I have two 
servers with Virtualmin where emails don't work and if emails don't 
work, then Virtualmin has to be discarded as valid options for control 
panels

Now on a third server that just has webmin; no virtualmin, I have emails 
working, they come in and show up in the user's inbox. That server I 
manually configured everything but it only has one real domain for the 
mail server.

If there is some magical tutorial on setting up Virtualmin to use 
multiple domains with one mail server to get it all working, please show 
me that because I haven't found it.

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

[Dave O. <da...@sy...>]

Virtualmin Email works just fine.

Please verify your install.  From the virualmin menu (using Authentic Theme) hit the "System Settings - Re-Check Configuration" and also hit Re-Run install Wizard.  

If it still fails, hit "Limits and Validation - Validate Virtual Servers", then Validate now.  

By now, you should see your problem, and be able to fix it.

Dave



> -----Original Message-----
> From: Kimberly [mailto:kim...@gm...]
> Sent: Sunday, December 30, 2018 12:44 PM
> To: Webmin users list
> Subject: [webmin-l] Virtualmin Email Doesn't Work
> 
> I have two different servers; one on a VPS, one on a dedicated server,
> both using CentOS 7 and Virutalmin and on both servers emails don't
> work.  This is a Virtualmin issue.  Both servers if I try to send an
> email to a user the emails just disappear.  They don't bounce back,
> they
> don't show up in the user's inbox, they just disappear.  Furthermore,
> the whole send email client configuration doesn't work; I even checked
> forwarding.  The email client configuration does not show up either on
> the server or the forward email.  Now on one server I can get
> thunderbird to connect and pull the mail settings and on the other it
> can't.  However, on the server that does, it keeps telling me that the
> password is wrong even when I added it manually in sight and copy and
> past into Thunderbird.  Is it the default settings in firewalld that
> Virtualmin creates?  I don't know.  What I do know is that I have two
> servers with Virtualmin where emails don't work and if emails don't
> work, then Virtualmin has to be discarded as valid options for control
> panels
> 
> Now on a third server that just has webmin; no virtualmin, I have
> emails
> working, they come in and show up in the user's inbox. That server I
> manually configured everything but it only has one real domain for the
> mail server.
> 
> If there is some magical tutorial on setting up Virtualmin to use
> multiple domains with one mail server to get it all working, please
> show
> me that because I haven't found it.
> 
> 
> 
> -
> Forwarded by the Webmin mailing list at webadmin-
> li...@li...
> To remove yourself from this list, go to
> http://lists.sourceforge.net/lists/listinfo/webadmin-list

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

[Kimberly <kim...@gm...>]

    Dave, I tried your suggestions; result below.  I am still unable to
    telnet to the Postfix server on port 25; I get connection refused. 
    I don't understand why Postfix is not responding with the hello
    command.  Maybe it is some simple thing I am overlooking, I just
    don't see what is wrong.  By the way, telnet to Dovecot on 110;
    dovecot responds with a validation error.  I am stuck without an
    answer; I just don't know where to go; what to check, why this is
    failing.  I am thinking of removing firewalld; can it block even if
    shut?  I prefer iptables as a firewall and know how to configure
    it.  The only thing I can think of is that the firewall is not
    allowing even when it is not running; which is a strange thing.  I
    don't know if it is the firewall that is giving me the connection
    refuse status or Postfix.  Normally when I set up iptables, I don't
    let it report back the status; someone trying to gain access through
    a port won't get any message about being refused. Please help someone!


    Your system has 31.16 GB of memory, which is at or above the
    Virtualmin recommended minimum of 256 MB.

    BIND DNS server is installed, and the system is configured to use it.

    Mail server Postfix is installed and configured.

    Postfix is configured to support per-domain outgoing IP addresses.

    Apache is installed.

    The following PHP versions are available : 5.6.39 (/bin/php-cgi),
    7.0.27 (/opt/rh/rh-php70/root/usr/bin/php-cgi), 5.6 (mod_php)

    PHP-FPM version 5.6.39 support is available on this system.

    Webalizer is installed.

    Apache is configured to host SSL websites.

    MySQL is installed and running.

    ProFTPD is installed.

    Logrotate is installed.

    SpamAssassin and Procmail are installed and configured for use.

    ClamAV is installed and assumed to be running.

    Plugin AWstats reporting is installed OK.

    Plugin Protected web directories is installed OK.

    Using network interface enp2s0 for virtual IPs.

    Default IPv4 address for virtual servers is REDACTED.

    Both user and group quotas are enabled for home and email directories.

    All commands needed to create and restore backups are installed.

    The selected package management and update systems are installed OK.

    Chroot jails are available on this system

*.. your system is ready for use by Virtualmin.

*
*Beginning validation of selected virtual servers. Any problems found 
will be shown in red ..*

REDACTED.com
    All features OK 

Firewalld check:

firewall-cmd --zone=public --list-all
public (active)
   target: default
   icmp-block-inversion: no
   interfaces: lo enp2s0
   sources:
   services: ssh dhcpv6-client smtp smtps ftp pop3 pop3s imap imaps http 
https
   ports: 587/tcp 53/tcp 20/tcp 2222/tcp 10000-10100/tcp 20000/tcp 
1025-65535/tcp 53/udp
   protocols:
   masquerade: no
   forward-ports:
   source-ports:
   icmp-blocks:
   rich rules:




On 30/12/18 18:26, Dave Overton via webadmin-list wrote:
> Virtualmin Email works just fine.
>
> Please verify your install.  From the virualmin menu (using Authentic Theme) hit the "System Settings - Re-Check Configuration" and also hit Re-Run install Wizard.
>
> If it still fails, hit "Limits and Validation - Validate Virtual Servers", then Validate now.
>
> By now, you should see your problem, and be able to fix it.
>
> Dave
>
>
>
>> -----Original Message-----
>> From: Kimberly [mailto:kim...@gm...]
>> Sent: Sunday, December 30, 2018 12:44 PM
>> To: Webmin users list
>> Subject: [webmin-l] Virtualmin Email Doesn't Work
>>
>> I have two different servers; one on a VPS, one on a dedicated server,
>> both using CentOS 7 and Virutalmin and on both servers emails don't
>> work.  This is a Virtualmin issue.  Both servers if I try to send an
>> email to a user the emails just disappear.  They don't bounce back,
>> they
>> don't show up in the user's inbox, they just disappear.  Furthermore,
>> the whole send email client configuration doesn't work; I even checked
>> forwarding.  The email client configuration does not show up either on
>> the server or the forward email.  Now on one server I can get
>> thunderbird to connect and pull the mail settings and on the other it
>> can't.  However, on the server that does, it keeps telling me that the
>> password is wrong even when I added it manually in sight and copy and
>> past into Thunderbird.  Is it the default settings in firewalld that
>> Virtualmin creates?  I don't know.  What I do know is that I have two
>> servers with Virtualmin where emails don't work and if emails don't
>> work, then Virtualmin has to be discarded as valid options for control
>> panels
>>
>> Now on a third server that just has webmin; no virtualmin, I have
>> emails
>> working, they come in and show up in the user's inbox. That server I
>> manually configured everything but it only has one real domain for the
>> mail server.
>>
>> If there is some magical tutorial on setting up Virtualmin to use
>> multiple domains with one mail server to get it all working, please
>> show
>> me that because I haven't found it.
>>
>>
>>
>> -
>> Forwarded by the Webmin mailing list at webadmin-
>> li...@li...
>> To remove yourself from this list, go to
>> http://lists.sourceforge.net/lists/listinfo/webadmin-list
>
>
> -
> Forwarded by the Webmin mailing list at web...@li...
> To remove yourself from this list, go to
> http://lists.sourceforge.net/lists/listinfo/webadmin-list
>

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

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

[Kris D. <kd...@vi...>]

Kimberly wrote:
> firewall-cmd --zone=public --list-all
> public (active)
>    target: default
>    icmp-block-inversion: no
>    interfaces: lo enp2s0
>    sources:
>    services: ssh dhcpv6-client smtp smtps ftp pop3 pop3s imap imaps http 
> https
>    ports: 587/tcp 53/tcp 20/tcp 2222/tcp 10000-10100/tcp 20000/tcp 
> 1025-65535/tcp 53/udp

These two lines don't seem to match up;  if smtp and smtps are allowed, 
ports 25 and 465 should be allowed as well as 587.  firewalld's 
configuration may be defining these differently for some reason, but 
this looks likely to be the root of your problem.

-kgd

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

[Kimberly <kim...@gm...>]

I shut and disabled firewalld.  I installed iptables-services.  I then 
started iptables and flushed all rules and chains leaving a completely 
clean firewall rule set with just the default chains with no rules.  I 
then proceeded to add my rules for allowing traffic on 80 and 443 and 25 
and ssh etc.  After finishing I tested with telnet xxx.xxx.xxx.xxx 25 
and low and behold Postfix responded.  I need to add ports for IMAP and 
usermin and a few other things but I think the problem is solved.

My server is CentOS 7.  The installation of Virtualmin was on a bare 
server using install.sh with php 5.6.x and MariaDB 10.1.x being the only 
two things I added before Virtualmin.  I don't know if this has 
something to do with firewalld itself or the rules that Virtualmin 
creates when it installs.  Personally, I think for internet servers 
firewalld is not necessary as we don't need zones as one might wish for 
a home computer.  From now on, I will not waste time with firewalld and 
will be using iptables for all internet servers.



On 04/01/19 17:22, Kris Deugau wrote:
> Kimberly wrote:
>> firewall-cmd --zone=public --list-all
>> public (active)
>>    target: default
>>    icmp-block-inversion: no
>>    interfaces: lo enp2s0
>>    sources:
>>    services: ssh dhcpv6-client smtp smtps ftp pop3 pop3s imap imaps 
>> http https
>>    ports: 587/tcp 53/tcp 20/tcp 2222/tcp 10000-10100/tcp 20000/tcp 
>> 1025-65535/tcp 53/udp
>
> These two lines don't seem to match up;  if smtp and smtps are 
> allowed, ports 25 and 465 should be allowed as well as 587. 
> firewalld's configuration may be defining these differently for some 
> reason, but this looks likely to be the root of your problem.
>
> -kgd
>
>
> -
> Forwarded by the Webmin mailing list at 
> web...@li...
> To remove yourself from this list, go to
> http://lists.sourceforge.net/lists/listinfo/webadmin-list