Featured Previews MailScanner + SpamAssassin + Logwatch for Postfix Addon

This is a preview of a new Centmin Mod Addon I am working on for MailScanner + SpamAssasin + Logwatch for Postfix installations on Centmin Mod LEMP .08 beta and higher installs. The MailScanner Addon requires that it be saved and ran from /addons directory as it requires maldet.sh Addon as a prerequisite. Centmin Mod .08 beta and higher add maldet.sh Addon by default. Centmin Mod Premium users will get first access to this Addon once it's ready for beta testing.

MailScanner provides for an anti-virus (via clamav/clamd) & anti-spam (spamassassin) protection at postfix MTA level so that server originated email is checked for spam and viruses before it leaves Centmin Mod based server. This mainly helps for email sent from the server via PHP mail functions e.g. Wordpress or other PHP apps which use the PHP mailer functions to sent email from your Centmin Mod server.

What Is MailScanner?

www.mailscanner.info/intro.html

How does MailScanner Work?

MailScanner Addon Info

Centmin Mod MailScanner Addon involves first detecting if you have sent EMAIL variable in mailscanner.sh to a valid email address for your email alerts. This EMAIL variable will also auto populate your maldet.sh addon ALERTEMAIL variable too so that the same email address is used for both MailScanner and maldet+clamav scan detected malware or viruses.

The MailScanner Addon also detects if maldet.sh addon has been installed for maldet and clamav/clamd packages and if not installed run maldet.sh addon first. The proceed with MailScanner installation which is configured to use it's own separate configuration file at /etc/MailScanner/conf.d/custom_mailscanner.conf which overrides the default MailScanner config file at /etc/MailScanner/MailScanner.conf.

Install Time

The installation time for MailScanner is quite long and by default involves rebuilding some RPM modules for more up to date versions for some perl modules for installation for CentOS 6/7. This install process can take more than 30-60 minutes depending on your system. However, I have sped this up by hosting the some of these up to date RPM modules on centminmod.com site. It's for this reason and amount of effort involved for this Addon that this MailScanner Addon will be only available initially for first access by Centmin Mod Premium users.

MailScanner Memory Consumption

MailScanner consumes a considerable amount of memory from 20MB master and 60-80MB per process and by default it runs a master processes and 5x default children so can consume up to 20MB master + or 5x60MB children 5x80MB children ~320-420MB. I've added some amount of memory installed detection to Addon, so that <512MB servers will lower max children for MailScanner from 5 to 1. So master + 1 child = 80-100MB usage. For >512MB servers, I've set max children to 3.

Postfix Mail Delivery Times

MailScanner takes over postfix service control as such there will be delays in email delivery compared to without MailScanner. The reason is Clamd virus scanner and SpamAssassin need to scan the emails before passing them on for delivery via postfix.

MailScanner Config File CMD Shortcuts

There's 2 command line shortcuts for mailscanedit and mymailscanedit which call the default and custom MailScanner config files respectively using nano text editor.

Code:

mailscanedit
mymailscanedit

The code behind the shortcuts

Code:

echo 'nano -w /etc/MailScanner/MailScanner.conf' > /usr/bin/mailscanedit
echo 'nano -w /etc/MailScanner/conf.d/custom_mailscanner.conf' > /usr/bin/mymailscanedit

MailScanner Version info

Code:

MailScanner -V
Running on
Linux mylocalhost.localdomain 2.6.32-504.3.3.el6.x86_64 #1 SMP Wed Dec 17 01:55:02 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
This is CentOS release 6.6 (Final)
This is Perl version 5.010001 (5.10.1)

This is MailScanner version 4.84.6
Module versions are:
1.00    AnyDBM_File
1.30    Archive::Zip
0.23    bignum
1.11    Carp
2.021   Compress::Zlib
1.119   Convert::BinHex
0.17    Convert::TNEF
2.124   Data::Dumper
2.27    Date::Parse
1.03    DirHandle
1.06    Fcntl
2.77    File::Basename
2.14    File::Copy
2.02    FileHandle
2.08    File::Path
0.22    File::Temp
0.92    Filesys::Df
3.64    HTML::Entities
3.64    HTML::Parser
3.57    HTML::TokeParser
1.25    IO
1.14    IO::File
1.13    IO::Pipe
2.04    Mail::Header
1.89    Math::BigInt
0.22    Math::BigRat
3.08    MIME::Base64
5.427   MIME::Decoder
5.427   MIME::Decoder::UU
5.427   MIME::Head
5.427   MIME::Parser
3.08    MIME::QuotedPrint
5.427   MIME::Tools
0.14    Net::CIDR
1.25    Net::IP
0.19    OLE::Storage_Lite
1.04    Pod::Escapes
3.13    Pod::Simple
1.17    POSIX
1.21    Scalar::Util
1.82    Socket
2.20    Storable
1.4     Sys::Hostname::Long
0.27    Sys::Syslog
1.40    Test::Pod
0.92    Test::Simple
1.9721  Time::HiRes
1.02    Time::localtime

Optional module versions are:
1.58    Archive::Tar
0.23    bignum
missing Business::ISBN
missing Business::ISBN::Data
1.15    Data::Dump
1.82    DB_File
1.27    DBD::SQLite
1.609   DBI
1.16    Digest
1.01    Digest::HMAC
2.39    Digest::MD5
2.12    Digest::SHA1
1.01    Encode::Detect
0.17015 Error
0.27    ExtUtils::CBuilder
2.2203  ExtUtils::ParseXS
2.38    Getopt::Long
0.46    Inline
1.08    IO::String
1.09    IO::Zlib
2.27    IP::Country
missing Mail::ClamAV
3.003001        Mail::SpamAssassin
v2.008  Mail::SPF
1.999001        Mail::SPF::Query
0.35    Module::Build
0.21    Net::CIDR::Lite
0.65    Net::DNS
v0.003  Net::DNS::Resolver::Programmable
missing Net::LDAP
4.027  NetAddr::IP
1.962.2 Parse::RecDescent
missing SAVI
3.17    Test::Harness
1.22    Test::Manifest
2.0.0   Text::Balanced
1.40    URI
0.77    version
1.14    YAML

MailScanner Service takes control over postfix service so that postfix service is stopped by default and only starts up when MailScanner triggers it to start up.

Code:

service MailScanner start

Starting MailScanner daemons:
         incoming postfix:                                 [  OK  ]
         outgoing postfix:                                 [  OK  ]
         MailScanner:                                      [  OK  ]

Test email send via postfix on server, check the /var/log/maillog for MailScanner's work flow.

Code:

echo "test mailscanner" | mail -s "test mailscanner `hostname` `date`" myuser@mydomain.com

/var/log/maillog

Code:

tailf /var/log/maillog
Jan 21 10:56:18 mylocalhost MailScanner[5527]: Reading configuration file /etc/MailScanner/conf.d/README
Jan 21 10:56:18 mylocalhost MailScanner[5527]: Reading configuration file /etc/MailScanner/conf.d/custom_mailscanner.conf
Jan 21 10:56:18 mylocalhost MailScanner[5527]: Read 873 hostnames from the phishing whitelist
Jan 21 10:56:18 mylocalhost MailScanner[5527]: Read 5890 hostnames from the phishing blacklists
Jan 21 10:56:18 mylocalhost MailScanner[5527]: Using SpamAssassin results cache
Jan 21 10:56:18 mylocalhost MailScanner[5527]: Connected to SpamAssassin cache database
Jan 21 10:56:18 mylocalhost MailScanner[5527]: Enabling SpamAssassin auto-whitelist functionality...
Jan 21 10:56:20 mylocalhost MailScanner[5527]: Connected to Processing Attempts Database
Jan 21 10:56:20 mylocalhost MailScanner[5527]: Found 0 messages in the Processing Attempts Database
Jan 21 10:56:20 mylocalhost MailScanner[5527]: Using locktype = flock
Jan 21 10:57:06 mylocalhost postfix/pickup[5500]: 96CCB44A7D: uid=0 from=<root>
Jan 21 10:57:06 mylocalhost postfix/cleanup[5537]: 96CCB44A7D: hold: header Received: by mylocalhost (Postfix, from userid 0)??id 96CCB44A7D; Wed, 21 Jan 2015 20:57:06 +1000 (AEST) from local; from=<root@mylocalhost> to=<myuser@mydomain.com>
Jan 21 10:57:06 mylocalhost postfix/cleanup[5537]: 96CCB44A7D: message-id=<20150121105706.96CCB44A7D@mylocalhost>
Jan 21 10:57:08 mylocalhost MailScanner[5527]: New Batch: Scanning 1 messages, 766 bytes
Jan 21 10:57:08 mylocalhost MailScanner[5527]: Virus and Content Scanning: Starting
Jan 21 10:57:18 mylocalhost MailScanner[5527]: Requeue: 96CCB44A7D.A6D5E to 5515E44A81
Jan 21 10:57:18 mylocalhost MailScanner[5527]: Uninfected: Delivered 1 messages
Jan 21 10:57:18 mylocalhost MailScanner[5527]: Deleted 1 messages from processing-database
Jan 21 10:57:18 mylocalhost postfix/qmgr[5501]: 5515E44A81: from=<root@mylocalhost>, size=530, nrcpt=1 (queue active)
Jan 21 10:57:22 mylocalhost postfix/smtp[5548]: connect to aspmx.l.google.com[2404:6800:4008:c04::1a]:25: Network is unreachable
Jan 21 10:57:24 mylocalhost postfix/smtp[5548]: 5515E44A81: to=<myuser@mydomain.com>, relay=aspmx.l.google.com[74.125.23.27]:25, delay=18, delays=12/0.07/4.7/1, dsn=2.0.0, status=sent (250 2.0.0 OK 1421837844 ti8si8037234pbc.26 - gsmtp)
Jan 21 10:57:24 mylocalhost postfix/qmgr[5501]: 5515E44A81: removed
Jan 21 11:01:03 mylocalhost update.bad.phishing.sites: Delaying cron job up to 600 seconds
Jan 21 11:02:28 mylocalhost update.virus.scanners: Delaying cron job up to 600 seconds
Jan 21 11:09:22 mylocalhost update.virus.scanners: Found clamav installed
Jan 21 11:09:22 mylocalhost update.virus.scanners: Running autoupdate for clamav
Jan 21 11:09:24 mylocalhost ClamAV-autoupdate[5754]: ClamAV did not need updating
Jan 21 11:09:24 mylocalhost update.virus.scanners: Found generic installed
Jan 21 11:09:24 mylocalhost update.virus.scanners: Running autoupdate for generic

Example of email headers received at myuser@mydomain.com

Code:

To: myuser@mydomain.com
Subject: test mailscanner mylocalhost Wed Jan 21 20:57:06 AEST
2015
User-Agent: Heirloom mailx 12.4 7/29/08
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Message-Id: <20150121105706.96CCB44A7D@mylocalhost>
From: root@mylocalhost (root)
X-CentOS-MailScanner-Information: Please contact the ISP for more information
X-CentOS-MailScanner-ID: 96CCB44A7D.A6D5E
X-CentOS-MailScanner: Found to be clean
X-CentOS-MailScanner-SpamScore: s
X-CentOS-MailScanner-From: root@mylocalhost
X-Spam-Status: No

With logging of MailScanner speed stats enabled

Code:

Jan 23 20:29:49 mylocalhost MailScanner[26635]: MailScanner E-Mail Virus Scanner version 4.84.6 starting...
Jan 23 20:35:16 mylocalhost postfix/pickup[25859]: D6E7E44BE8: uid=0 from=<root>
Jan 23 20:35:16 mylocalhost postfix/cleanup[26735]: D6E7E44BE8: hold: header Received: by mylocalhost.localdomain (Postfix, from userid 0)??id D6E7E44BE8; Fri, 23 Jan 2015 20:35:16 +1000 (AEST) from local; from=<root@mylocalhost.localdomain> to=<myuser@mydomain.com>
Jan 23 20:35:16 mylocalhost postfix/cleanup[26735]: D6E7E44BE8: message-id=<20150123103516.D6E7E44BE8@mylocalhost.localdomain>
Jan 23 20:35:19 mylocalhost MailScanner[25866]: New Batch: Scanning 1 messages, 766 bytes
Jan 23 20:35:19 mylocalhost MailScanner[25866]: Virus and Content Scanning: Starting
Jan 23 20:35:19 mylocalhost MailScanner[25866]: Virus Scanning completed at 7778 bytes per second
Jan 23 20:35:20 mylocalhost MailScanner[25866]: Spam Checks completed at 923 bytes per second
Jan 23 20:35:20 mylocalhost MailScanner[25866]: Requeue: D6E7E44BE8.A4838 to 7507C44BEC
Jan 23 20:35:20 mylocalhost MailScanner[25866]: Uninfected: Delivered 1 messages
Jan 23 20:35:20 mylocalhost MailScanner[25866]: Virus Processing completed at 155089 bytes per second
Jan 23 20:35:20 mylocalhost postfix/qmgr[25860]: 7507C44BEC: from=<root@mylocalhost.localdomain>, size=530, nrcpt=1 (queue active)
Jan 23 20:35:20 mylocalhost MailScanner[25866]: Deleted 1 messages from processing-database
Jan 23 20:35:20 mylocalhost MailScanner[25866]: Batch completed at 800 bytes per second (766 / 0)
Jan 23 20:35:20 mylocalhost MailScanner[25866]: Batch (1 message) processed in 0.96 seconds
Jan 23 20:35:22 mylocalhost postfix/smtp[26742]: connect to aspmx.l.google.com[2404:6800:4008:c05::1b]:25: Network is unreachable
Jan 23 20:35:24 mylocalhost postfix/smtp[26742]: 7507C44BEC: to=<myuser@mydomain.com>, relay=aspmx.l.google.com[173.194.72.26]:25, delay=8, delays=3.2/0.02/3.8/0.98, dsn=2.0.0, status=sent (250 2.0.0 OK 1422009324 ej17si1301974pdb.218 - gsmtp)
Jan 23 20:35:24 mylocalhost postfix/qmgr[25860]: 7507C44BEC: removed

Example MailScanner config test which uses a sample infected email for virus scanning detection. MailScanner installation via the Centmin Mod Addon is configured to the more efficient virus scanner, clamd as opposed to the old clamavconnector or clamav options.

Code:

MailScanner -lint
Trying to setlogsock(unix)

Reading configuration file /etc/MailScanner/MailScanner.conf
Reading configuration file /etc/MailScanner/conf.d/README
Reading configuration file /etc/MailScanner/conf.d/custom_mailscanner.conf
Read 876 hostnames from the phishing whitelist
Read 5890 hostnames from the phishing blacklists

Checking version numbers...
Version number in MailScanner.conf (4.84.6) is correct.

Your envelope_sender_header in spam.assassin.prefs.conf is correct.
MailScanner setting GID to  (89)
MailScanner setting UID to  (89)

Checking for SpamAssassin errors (if you use it)...
Using SpamAssassin results cache
Connected to SpamAssassin cache database
SpamAssassin reported no errors.
Connected to Processing Attempts Database
Created Processing Attempts Database successfully
There are 0 messages in the Processing Attempts Database
Using locktype = posix
MailScanner.conf says "Virus Scanners = clamd"
Found these virus scanners installed: clamd
===========================================================================
Filename Checks: Windows/DOS Executable (1 eicar.com)
Other Checks: Found 1 problems
Virus and Content Scanning: Starting
Clamd::INFECTED::Eicar-Test-Signature :: ./1/
Clamd::INFECTED:: Eicar-Test-Signature :: ./1/eicar.com
Virus Scanning: Clamd found 2 infections
Infected message 1 came from 10.1.1.1
Virus Scanning: Found 2 viruses
===========================================================================
Virus Scanner test reports:
Clamd said "eicar.com was infected: Eicar-Test-Signature"

If any of your virus scanners (clamd)
are not listed there, you should check that they are installed correctly
and that MailScanner is finding them correctly via its virus.scanners.conf.

Logwatch

Logwatch is a customizable log analysis system. Logwatch parses through your system's logs and creates a report analyzing areas that you specify. By default Logwatch analyses all system logs. However, this Addon installer has limited it to a few select logs for reporting via email on a daily basis.

Below are some example email reports from Logwatch including for postfix and MailScanner logs

---

For MailScanner

Code:

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:19:19 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 5
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- MailScanner Begin ------------------------

MailScanner Status:
        10 messages Scanned by MailScanner
        15.3 Total KB
        9 Messages delivered by MailScanner

**Unmatched Entries**
    Reading configuration file /etc/MailScanner/MailScanner.conf: 25 Time(s)
    Connected to Processing Attempts Database: 25 Time(s)
    Reading configuration file /etc/MailScanner/conf.d/custom_mailscanner.conf: 25 Time(s)
    Reading configuration file /etc/MailScanner/conf.d/README: 25 Time(s)
    Found 0 messages in the Processing Attempts Database: 23 Time(s)
    Deleted 1 messages from processing-database: 9 Time(s)
    Found 1 messages in the Processing Attempts Database: 2 Time(s)

---------------------- MailScanner End -------------------------


###################### Logwatch End #########################

For Postfix

Code:

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:12:11 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 0
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- Postfix Begin ------------------------

        6   Placed on hold

    4.924K  Bytes accepted                             5,042
    4.924K  Bytes delivered                            5,042
========   ================================================

        6   Accepted                                 100.00%
--------   ------------------------------------------------
        6   Total                                    100.00%
========   ================================================

        6   Removed from queue
        4   Delivered
        2   Sent via SMTP

        2   Connection failure (outbound)

        4   Postfix start
        3   Postfix stop
        1   Postfix refresh
        1   Postfix waiting to terminate



**Unmatched Entries**
        1   Jan 22 09:18:24 mylocalhost postfix/master[3664]: reload -- version 2.6.6, configuration /etc/postfix

---------------------- Postfix End -------------------------

Spoiler: Click to view other Logwatch examples

Code:

###################### Logwatch End #########################

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:13:33 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 5
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- Postfix Begin ------------------------

****** Summary *************************************************************************************

        7   Placed on hold

    6.934K  Bytes accepted                             7,100
    6.934K  Bytes delivered                            7,100
========   ================================================

        7   Accepted                                 100.00%
--------   ------------------------------------------------
        7   Total                                    100.00%
========   ================================================

        7   Removed from queue
        4   Delivered
        3   Sent via SMTP

        3   Connection failure (outbound)

        4   Postfix start
        3   Postfix stop
        1   Postfix refresh
        1   Postfix waiting to terminate


****** Detailed ************************************************************************************

        7   Placed on hold --------------------------------------------------------------------------
        1      Received: by mylocalhost.localdomain (Postfix, from userid 0)??id 07E3644AC9; Thu, 2...
        1      Received: by mylocalhost.localdomain (Postfix, from userid 0)??id 2E73F4497B; Thu, 2...
        1      Received: by mylocalhost.localdomain (Postfix, from userid 0)??id 54EB944ACF; Thu, 2...
        1      Received: by mylocalhost.localdomain (Postfix, from userid 0)??id 7F63144AA5; Thu, 2...
        1      Received: by mylocalhost.localdomain (Postfix, from userid 0)??id 8E98D4473E; Thu, 2...
        1      Received: by mylocalhost.localdomain (Postfix, from userid 0)??id BB2EE44AB9; Thu, 2...
        1      Received: by mylocalhost.localdomain (Postfix, from userid 0)??id E092444AB1; Thu, 2...

        4   Delivered -------------------------------------------------------------------------------
        3      mylocalhost.localdomain
        1      localhost.localdomain

        3   Sent via SMTP ---------------------------------------------------------------------------
        3      centminmod.com

        3   Connection failure (outbound) -----------------------------------------------------------
        3      Network is unreachable

Code:

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:19:06 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 5
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- yum Begin ------------------------

Packages Installed:
    logwatch-7.3.6-52.el6.noarch
    perl-Date-Manip-6.24-1.el6.noarch
    perl-YAML-Syck-1.07-4.el6.x86_64

---------------------- yum End -------------------------

###################### Logwatch End #########################

Code:

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:19:12 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 5
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- Cron Begin ------------------------

Commands Run:
    User root:
       /usr/lib64/sa/sa1 1 1: 17 Time(s)
       /usr/local/maldetect/maldet --mkpubpaths >> /dev/null 2>&1: 17 Time(s)
       run-parts /etc/cron.hourly: 4 Time(s)

**Unmatched Entries**
INFO (RANDOM_DELAY will be scaled with factor 65% if used.)
INFO (RANDOM_DELAY will be scaled with factor 81% if used.)

---------------------- Cron End -------------------------


###################### Logwatch End #########################

Code:

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:57:16 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 5
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- System Configuration Begin ------------------------

    CPU:     2 Intel(R) Core(TM) i7-3635QM CPU @ 2.40GHz at 2373MHz
    Memory:  996 MB
    Machine: x86_64
    Release: Linux 2.6.32-504.3.3.el6.x86_64

---------------------- System Configuration End -------------------------


###################### Logwatch End #########################

Code:

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:19:37 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 5
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- Disk Space Begin ------------------------

Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_mylocalhost-lv_root
                        16G  4.6G   11G  32% /
/dev/sda1             477M  111M  341M  25% /boot


---------------------- Disk Space End -------------------------


###################### Logwatch End #########################

Code:

################### Logwatch 7.3.6 (05/19/07) ####################
        Processing Initiated: Thu Jan 22 14:19:44 2015
        Date Range Processed: today
                              ( 2015-Jan-22 )
                              Period is day.
      Detail Level of Output: 5
              Type of Output: unformatted
           Logfiles for Host: mylocalhost.localdomain
  ##################################################################

--------------------- Network Report Begin ------------------------

------------- Network Interfaces ---------------

Ethernet : 1
Other    : 1
Total    : 2


------------- Ethernet -------------------------

eth0      Link encap:Ethernet  HWaddr 08:00:27:4A:D5:AA


------------- Other ----------------------------

lo        Link encap:Local Loopback


------------- Network Interfaces ---------------




------------- Network statistics ---------------

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     inet 127.0.0.1/8 scope host lo
     inet6 ::1/128 scope host
        valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
     link/ether 08:00:27:4A:D5:AA brd ff:ff:ff:ff:ff:ff
     inet 127.0.0.1/24 brd 192.168.0.255 scope global eth0
     inet6 fe80::a00:27ff:ee4a:d5aa/64 scope link
        valid_lft forever preferred_lft forever

Iface     MTU RX-ERR TX-ERR
eth0     1500      0      0
lo      65536      0      0


------------- Network statistics ---------------



---------------------- Network Report End -------------------------


###################### Logwatch End #########################

 

Availability Status for MailScanner Addon

Centmin Mod Premium users will get first access to this Addon once it's ready for beta testing. Currently, it's still undergoing internal testing and development. I'd subscribe to this thread via the thread watch feature to get notifications (email) for updates.

 

MailScanner Addon Change Log / Updates

TBA

 

mailscanner is very very cpu and memory resource hungry and can easily add another 2-4+ GB to your server requirements