Plesk 12.x / Linux :: Greylisting Filter Wrong HELO Hostname
Sep 23, 2014
Seems this started when upgrading to a version of 12. It was working a few days ago and only seems to affect mailing lists. I found a google Cached thread here where Igor was assisting some folks as late as Aug 4 and referenced this was "reported to development (PPP-10678 for your reference)" it seems the forums on Parallels changed or something because several Google links are not working and resulting in having to used cached results for the two links below.
I am able to disable SPF and the e-mails go through just fine however this was working with SPF enabled before a recent upgrade.
Page 1
[URL] ....
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[URL] ....
This is the error message displayed in /var/log/maillog
Sep 24 01:38:35 controlpanel postfix/smtpd[3725]: connect from localhost[127.0.0.1]
Sep 24 01:38:35 controlpanel postfix/smtpd[3725]: D565017C013E: client=localhost[127.0.0.1]
Sep 24 01:38:35 controlpanel greylisting filter[3899]: Starting greylisting filter...
[Code] ....
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Jun 23, 2014
My server is using Centos 6.5... I updated from Plesk 11.5 to 12 last week and postfix to 2.8.17.
Since then, all mails sent using the sendmail binary (notifications, mail forwards...) are being rejected with a wrong HELO hostname: localhost.
It seems that sendmail is using locahost as a HELO tag which is not accepted. Here is the following error:
Code:
Jun 23 14:23:20 ns395167 plesk sendmail[29817]: handlers_stderr: SKIP
Jun 23 14:23:20 ns395167 plesk sendmail[29817]: SKIP during call 'check-quota' handler
Jun 23 14:23:20 ns395167 postfix/pickup[29480]: B94BC6AA20A6: uid=0 from=<root@curuba.fr>
Jun 23 14:23:20 ns395167 postfix/cleanup[29507]: B94BC6AA20A6: message-id=<20140623122320.B94BC6AA20A6@ns395167.ip-176-31-117.eu>
[Code] .....
Here is my postconf -n content:
Code:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases, hash:/var/spool/postfix/plesk/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
[code] .....
My system hostname seems correct:
Code:
hostname -f
ns395167.ip-176-31-117.eu
hostname
ns395167.ip-176-31-117.eu
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Nov 28, 2014
the hostname is www.domain.com also in the serversettings of plesk. When we go to http://www.domain.com:8443 we become redirected to https://www:8443. The only way to connect to plesk is to use https the redirect from http doesnt work.
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Feb 20, 2014
Suddenly my server stop to accept mail from outside. Here you have the logs of mail.info
Feb 20 14:26:02 xxx postfix/smtpd[5581]: 17098E1CCB: milter-reject: DATA from mail2.email-o-matic.com[217.116.24.xxx]: 451 4.7.1 Service unavailable - try again later; from=<empresas@xxx.es> to=<whatever@whatwever.es> proto=ESMTP helo=<mail2.email-o-matic.com>
It seems it is a milter problem as in the line I can read "milter-reject"
Also I have a lot of lines like this:
Feb 20 14:27:34 dv2 greylisting filter[9152]: Starting greylisting filter...
Feb 20 14:27:36 dv2 greylisting filter[9154]: Starting greylisting filter...
Feb 20 14:27:37 dv2 greylisting filter[9165]: Starting greylisting filter...
I can go to control panel and stop plesk milter but I see these lines on mail.info
Feb 20 14:30:04 xxx postfix/smtpd[8845]: warning: connect to Milter service inet:127.0.0.1:12768: Connection refused
And 4.7.1 still there
Feb 20 14:30:03 xxx postfix/smtpd[7289]: NOQUEUE: milter-reject: CONNECT from 223.179.15.xx.dynamic.jazztel.es[37.15.179.xx]: 451 4.7.1 Service unavailable - try again later; proto=SMTP
Maybe is a port (12768) connection error? How I can test that port?
This KB article does not solve anything as the load of the server is 0.1-0.5 [URL] ....
A temporal fix is to edit /etc/postfix/main.cf file comment these two lines:
smtpd_milters = , inet:127.0.0.1:12768
non_smtpd_milters = , inet:127.0.0.1:12768
And restart postfix (/etc/init.d/postfix restart)
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Jun 25, 2015
I have a question regarding greylisting.
I activated greylisting on my mailserver and took a look in the logfiles.
The mail are temporary rejected with the following log message / statuscode:
451 4.7.1 Service unavailable - try again later;
Mails from my server to other servers are greylisted with messages like:
451 4.7.1 message delayed, see http://www.greylisting.org ;
452 Greylisted. Please try again after some time.
451 4.7.1 <E-MAIL-ADRESSE>: Sender address rejected: Greylisting in action. Please try again later.
Is it possible to change this log message at my server?
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Jul 13, 2015
I formatted my server and installed CENTOS 7 and PLESK 12. I have problems with cbl.abuseat.org. My ip enters in blacklist. I sent email to the support of abuseat.org and abuseat reply:
Please fix your HELO strings.
I check the my configuration and I think is correct:
- Reverse lookup is ok
- Hostname is ok (server.domain.tld)
But I have the file in /etc/sysconfig/network empty. There is only written: # Created by anaconda
Also, is correct the my etc/hosts file?
127.0.0.1 server.domain.tld server localhost4 localhost4.localdomain4
:: 1 server.domain.tld server localhost6 localhost6.localdomain6
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Jan 14, 2015
I've been plagued by CBL listing for quite some time now, on a linux server with Plesk 12.After months of a fierce fight against every possible malware on the about 120 various websites on this server, extensively monitoring clients emails, enabling restrictive policies and finally even hiring a private security firm to investigate the problems further, we were sure that not a single spam message was sent by our server in any way.
So we finally contacted CBL, exposed the issue and got this answer:The CBL attempts to detect compromised machines in a number of ways based upon the email that the CBL's mail servers receive.During this it tries distinguish whether the connections represent real mail servers by ensuring that each connection is claiming a plausible machine name for itself (via SMTP HELO), and not listing any IP that corresponds to a real mail server (or several mail servers if the IP address is a NAT firewall with multiple mail servers behind it). 54.194.XX.XXX was found to be using several different EHLO/HELO names during multiple connections on or about:
2015:01:09 ~16:30 UTC+/- 15 minutes (approximately 3 days, 21 hours, 14 minutes ago).
The names seen included: xxx1.xx, xxx2.xx, xxx3.xx, xxx4.xx, xx.xxx5.xx, veniceberg.com..Note that the above list may include one or more names that are not fully qualified DNS names (FQDNs). Host names (ie: Windows node names) without a dot are not FQDNs.
The final possibility is that 54.194.XX.XXX is not a NAT firewall, and is instead a single box with many domains provisioned on it, some that send email directly, setting the HELO as the sending domain. If this is the case, to prevent a relisting we strongly recommend setting the mail software on the box so that a single identifying name is used in outbound SMTP connections mail software on the box so that a single identifying name is used in outbound SMTP connections. As an alternate workaround, you can configure the mail software to relay its outbound email through an intermediate mail server. Even a co-resident mail server package (such as IIS on Windows) will do fine.
This pointed me to this Plesk Mail setting (not sure if this selection is the default). Now we are waiting a few days to see if changing to "Send from domain IP addresses" solves the issue. I think this is a kind of issue which deserves attention by Parallels to avoid other users go trough our fatiguing ordeals. If this setting is responsible for getting servers blacklisted, it should be highly discouraged.
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Aug 12, 2014
I am not able to add a new filter to fail2ban
If I go in plesk panel to: Home > Tools & Settings >IP Address Banning > Jails > managing Filters > add filter > type in name & filtercontent and save I get "Information: The jail filter was added". But i can not see the new added filter in the Plesk Filter List (still just the 12 Filters in the list).
On the filesystem > /etc/fail2ban/filter.d/ i can see the new file but with the extension .local - usulay the file is named like xyz.conf
The output of /usr/local/psa/admin/sbin/f2bmng --get-filters-list
[["apache-auth", "fail2ban"], ["apache-badbots", "fail2ban"], ["apache-common", "fail2ban"],
["common", "fail2ban"], ["plesk-courierlogin", "plesk-fail2ban-configurator"],
["plesk-dovecot", "plesk-fail2ban-configurator"], ["plesk-horde", "plesk-fail2ban-configurator"],
["plesk-panel", "plesk-fail2ban-configurator"], ["plesk-qmail", "plesk-fail2ban-configurator"],
["plesk-roundcube", "plesk-fail2ban-configurator"], ["postfix-sasl", "fail2ban"],
["proftpd", "fail2ban"], ["recidive", "fail2ban"], ["sshd", "fail2ban"], ["test", null]]
test is the name i choosed for the new filter and it seems the second field has "null" .....
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Dec 5, 2014
I recently set up an eas and autodiscover sub-domains on my main domain (eg myserver.com) running Plesk, Webmail etc, and is the default website for the ip.
So it should be..
myserver.com (not SNI default for IP)
eas.myserver.com (SNI)
autodiscover.myserver.com (SNI)
But I notice the actual default site (non SNI) is the sub-domain autodiscover.myserver.com.
I checked in
Plesk -> Tools & Settings -> IP Addresses
and that was set correctly, so I tried to change it and back again, then...
/opt/psa/admin/bin/httpdmng --reconfigure-all
Neither worked.
I'm running Ubuntu 12.04.5 LTS and Plesk 11.5.30 #48 (the latest MU)
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Sep 5, 2014
I had a old virtual Server with Ubuntu+Plesk12. I build a new dedicated Server with CentOS6+Plesk12 and migrate all Domains. Now i have a strange problem:
When i upload a file with FTP-User "user1", the file has the permissions Group=psacln & Owner=user1. All is fine, i can see and edit this file in a FTP-Program. But when my website create a file (cache html files or installed plugin folders in wordpress), I can't see, can't edit and can't download this files.
When i login to plesk with the admin account, i can see and edit this files. They have also Group=psacln & Owner=user1 and i can give them 0666 rights but when i login with FTP-User "user1" with my FTP-Program, I didn't see that files?!
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Sep 30, 2014
I want to create a Sieve filter for my email account using the Webmail interface of Horde.When I save a script at /ingo/basic.php?page=filters I get the following error message:Please note: My system language is German. See my translation of the German error messages within braces.
Code:
Skript nicht aktualisiert ("Script not updated"): exception 'Ingo_Exception' with message 'Beim Aktivieren des Skripts ist ein Fehler aufgetreten.
Fehlermeldung des Treibers ("Error while activating the script. Error message of the driver"): exception 'Ingo_Exception' with message
'Verbindungsaufbau abgelehnt' ("Connection refused") in /usr/share/psa-horde/ingo/lib/Transport/Timsieved.php:87
[code]...
Is there a way to modify / create Sieve filters without Horde?
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Jul 18, 2015
I want to send a notification (by an email to SMS gateway) when a specific email arrives. I see that Roundcube has a sieve filter option called "Send Notification" and it has three input boxes which have no tooltips and I am unable to find any documents telling me what to fill in those boxes.
The boxes are:
Method
Options
Message
The Message is obvious enough, but the other two?
For the method, I tried mailto:<me@myemailaddress.com>
I left the options blank, typed in a short message and tried to save the filter, but it gave me an error message "Unable to save filter - server error occurred". Annoyingly, it then wiped out what I had typed and started me with a blank rule again. I also tried without the < and > round the email address.
Any clues as to proper syntax and what the options are?
Also, is it necessary to have another action after the Send Notification action to file the email away somewhere, or will it just be left in the inbox anyway if the only action is the notification?
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Jul 18, 2014
I am happily running Plesk 11.5; with just one small but annoying persistent problem:
I have Clients with large mailinglistes
- SpamAssassin
- Server-wide greylisting
- DNSBL
is running.
But apparently many of the lists mail addresses have been harvested over the years. And as there is no easy way to use SA in mailman, I am down to greylisting only for list addresses.
This results in insanely large amounts of SPAM (-> moderation requests) on the client's lists. Is this behavior improved in Plesk 12?
Or can probably SIEVE filters work here - are those available to mailman? (probably not as they work in Dovecot?)
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Aug 18, 2014
I'm new to Plesk - I've inherited a web site for a local social club so have just been handed login and password. I believe I have version 11.0.9 and as I can see mention of an Apache webserver I'm guessing its linux.
So - I want to redesign and use Joomla so I can share the content updating with others.
I can't install Joomla as I have PHP 5.1 and need 5.3. I have no 'server' or any sort of option I can find (and I've looked everywhere!) to find a command line or somewhere I can run things.
When I try to allow SSH access the option says Forbidden and there is no option to change it.
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Nov 15, 2013
I have a problem where every folder I ftp onto the server gets given a 700 permission and every file gets a Zero permission. Most of the sites I am adding to this server will be WordPress sites and most of the folders I want to have a permission of 755 and for the files a permission of 644 so my question is how do I change the settings so that any new files ftp'd onto the server get the permission 755 and files get the permission of 644 ?
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Mar 12, 2015
I'm running Plesk 12.0.18 on Centos 7, recently I've got emails from backup service stating that it could not complete the backup due to insufficient space available on disk. Normally I have plenty of disk space available so I check the disk using the command
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 20G 2.3G 17G 13% /
/dev/md2 91G 82G 4.4G 95% /var
it seems that /var has been growing up a lot,
but if I run the command
du -sh /var
I get a total size of 5.7G (not 82G as stated before)
is Plesk calculating the wrong size or it's me using the wrong commands?
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Dec 5, 2014
I have plesk11.5 and found a big security bug in my script because plesk11 do a strange behavior:
[REMOTE_ADDR] => 95.*.*.*
[SERVER_PORT] => 80
[SERVER_ADDR] => 91.*.*.*
[SERVER_NAME] => domain.com
[SERVER_SOFTWARE] => Apache
[REMOTE_ADDR] => 2003:67:4b4b:*
[SERVER_PORT] => 80
[SERVER_ADDR] => 127.0.0.1
[SERVER_NAME] => domain.com
[SERVER_SOFTWARE] => ApacheClick to expand...
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Jul 9, 2014
This is on Ubuntu 12.04 with Plesk 11.5.
I set this up for someone, and temporarily changed the email for the administrative account to my address.
I have since changed this back to the original email, but Plesk keeps sending the administrative emails to my account.
I've pretty much grepped through the entire server for my email in order to stop it sending me emails, but I can't for the life of me find out why it keeps sending these emails to me.
How do I make Plesk send these emails to the right email-account?
The server is using Qmail.
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Dec 3, 2014
I'm getting the following attempts every few minutes, I'd to put a stop to it with Fail2Ban but so far I've been unsuccessful. I get no IP bans in the Fail2Ban panel in Plesk 12.
Dec 3 23:24:14 XXX postfix/smtpd[2535]: warning: ca215.calcit.fastwebserver.de[146.0.42.84]: SASL LOGIN authentication failed: authentication failure
/etc/fail2ban/filter.d/sasl.conf
# Fail2Ban filter for postfix authentication failures
#
[INCLUDES]
[Code]....
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May 30, 2014
i'm running the latest version of Plesk 11 on a Ubuntu 12.04 system.
We have a customer with a domain and this customer added other domains to his account.
now, 2 domains are not working, he created the as usual, Plesk created the directories under /vhosts/domain.com/domain1.com and the vhosts.conf are also correct.
when i'm opening the domain in the browser, i get the following error message:
The requested URL /var/www/vhosts/domain.com/index.php was not found on this server.
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Jul 11, 2014
I have a problem with webmail (horde). Horde Webmail show the wrong time, 2 hours to late. It look like that horde show the UTC time, but not the CEST "Europe/Berlin" of my server. I can change that over "preferences" -> "global preferences" -> "locale and time" and change "Your current time zone" from "Default" to "Europe/Berlin". This will now show the correct time (timezone), but this is not the solution because this will do all webmail users.
How can i change the default timezone in Horde?
Output from shell
#my timezone and this will show in all things but not in webmail horde
[root@www /]# date
Fr 11. Jul 17:32:14 CEST 2014
#this time look like the default time in horde
[root@www /]# date -u
Fr 11. Jul 15:33:31 UTC 2014
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Apr 3, 2015
Almost all mail adresses on my server is getting a spam mail from same mail marketing company everyday and i want to block them... Normally i just add the mail address to blacklist from "Spam Filter Settings" but this company is opening new addresses everyday and it is impossible to add all of them to blacklist so i need adding it as a regex to the blacklist...
The company i am talking about is opening mail addresses every day like below...
nrt150401@hotmail.com
nrt150402@gmail.com
nrt150403@yandex.com
nrt150404@mynet.com
As you can see all mail addresses begin with "nrt"+"6 digits of day"+"free mail provider", so right now i am using the regex below and it is already added to the blacklist but they are still able to send me... What can i do now?
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Mar 18, 2015
We are successfully using fail2ban on our server (CentOS 6.6, Plesk 12.0.18), that is, jails running and blocking potential intruders
However, we tried to create a custom jail for the CMS that is being used by most of our clients.
I followed the instructions (Tools & Settings > IP Address Banning (Fail2Ban) > Jails > Manage Filters > Add Filter) and created the filter I wanted, but then it does not appear in the list, even though it displays a message reading that the filter was created successfully. Then, if I try to create a new Jail, the filter is not available from the list.
Looking at the directory /etc/fail2ban/filter.d/ I can find a file that has the same name as the filter I created, with a .local extension (the file name does not contain whitespaces or other special characters)...
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Jul 24, 2014
I can only add 100 addresses to the global address spam white list. I need to add more!
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Oct 9, 2014
I have set up a vacation filter in Horde, but only in once in a while it really returns a vacation message, depending on who is sending an email. In most cases,the message arrives without triggering a response.The messagelog shows two scenarios, one for an successful vacation response and one for emails that fail to trigger a response.Sucessful event:
Oct 9 10:48:24 server dovecot: service=lda, user=xyz@mydomain.com, ip=[]. sieve: msgid=<408-EAS2941777BF41EEBE6640B691D3A00@axy.gbl>: sent vacation response to <guntherk@hotmail.com>
and then
Oct 9 10:48:24 server qmail: 1412844504.308454 starting delivery 21782: msg 33566019 to remote abc@externaldomain.com
then the message is stored into the users inbox.
Unsuccessful event:
Oct 9 10:55:39 server dovecot: service=lda, user=xyz@mydomain.com, ip=[]. sieve: msgid=<trinity-90b5e87d-183b-49b8-8e3e-d2f98b96df3e-1412844932925@uvw-com>: discarded vacation reply to <>
then the message is stored into the users inbox.
The actual version of Plesk (v12.0.18) on Centos 6.5 with Dovecot & Qmail is beeing used.
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Jan 30, 2015
Now with Plesk 12 (and I suppose all previous versions) we can't change the SMTP banner to something other than the hostname.But If server host different IPs with different domains,only the primary IP do not have problems for email delivability all other domains are marked spam.This is a critical issue for email deliverability. Very critical issue that should be solved asap.the only solution that we found with our systemists is to remove Plesk, but sure it's not what I would like to do.
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Jun 11, 2015
I use PLESK 11 on one of my servers, and use NS.mydomain & NS1.mydomain, everything works fine, DNS Zones are OK, reverse DNS is OK...
Except on MXTOOLBOX this :
SMTP Valid Hostname > Reverse DNS is not a valid Hostname
SMTP Reverse > DNS Mismatch OK - 195.154.XXX.XXX resolves to mydomain.eu
SMTP Banner Check > OK - Reverse DNS matches SMTP Banner
Tried so many searches on Google, but no response and always 3 same pages from MXTOOLBOX.
I migrated IP of this server in datacenter, because they ask us to do it, so in /etc/hosts for example I found old IP, I changed it, restart network interface, but always the same thing... postfix too (changed IP and restart).
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Mar 10, 2013
I enter one of my IPs or the hostname belonging to this IP, followed by the Plesk port, and I get redirected to the "main" hostname of the server, which was set in Plesk. But at this moment that hostname is used by another server (my old server) and so I'm redirected to the other server and cannot access Plesk on the new server.
I don't know why Plesk reacts like this, because it did not on the old server. Here the problem more detailed:
I'm just configuring my new server with Plesk 11. My old server uses Plesk 10. On my old server / in Plesk 10 I have the following scenario:
- I have several IPs (10)
- Each IP is used for a different domain
- Each IP has it's domain as the reverse entry (configured outside of the server/Plesk)
- Each IP is set to "Dedicated" in Plesk
- I set Plesk to listen only on one of these IPs (and different port)
- Several domains are created in Plesk, but not a domain for my Plesk IP
- The server's name is one of the domains (required for mails not being recognized as spam)
- The hostname of the Plesk IP is one assigned by my provider (something like x-x-x-x.xyzservers.com)
- Entering the IP of Plesk redirects to the "Plesk hostname"
=> Plesk can be accessed by using x-x-x-x.xyzservers.com:myport
And under Plesk 11 (here comes the problem):
- Still several IPs (but less: 4)
- One IP should be used for Plesk, one for domain X, one for domain Y and the last one for the other domains
- Reverse entries are x-x-x-x.xyzservers.com for Plesk IP, domain X/Y for two other IPs and the main domain for the last IP
- Plesk IP and the two single domain IPs are configured as dedicated, the last one as shared
- At this point I did not configure any domains in Plesk
- Server's name is the same as my old server (the main domain)
=> Entering any IP with the Plesk port redirects to the servers hostname, e.g. my main domain, which is still on the old server.
=> Result: I cannot access Plesk!
Of course I could just change the hostname of the server via SSH (just have to find out how to do this), but why does Plesk react in another way now? Or is the problem that I cannot change Plesk to listen on only one IP?
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Jan 14, 2015
apparently Envelope-From, Sender and Errors-To headers are set to a wrong address for messages from mailman to the list-owner. This is particularly true for mails like 'message requires approval'.
It seems like the plesk<->mailman magic results in all list-domains being written to the end of /var/lib/mailman/Mailman/mm_cfg.py in the following format: add_virtualhost('list.DOMAIN').This in return results in mail headers Envelope-From, Sender and Errors-To of mailman system mails like described above being set to mailman-bounces@DOMAIN, where DOMAIN is the one from the last add_virtualhost entry.
In my opinion, this obviously is a bug. Maintainance mails from mailinglists have wrong headers set, often with a domain that belongs to a completely different customer than the mailinglist.
I found the following discussion on mailman-users mailinglist from 2008 which discusses the same issue - also a plesk setup: URL....
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