October 2023 - Mailman-users - lists.mailman3.org

Re: [Mailman-Developers] Re: SSL error while connecting to hyperkitty
by Abhilash Raj 29 Nov '23

29 Nov '23

On Sat, Aug 31, 2019, at 10:20 AM, sandeep kumar wrote: > Hi Abhilash > > Thanks for the reply. > > Just two more answers please -:) > > Can I use the sample apache.conf in example_project in my webserver virtual host...?? See this thread for the apache configuration: https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/… You'd need to adjust the paths and SSL configuration. > > And what should be the configuration details to be given in uwsgi server...?? http://docs.mailman3.org/en/latest/prodsetup.html#setting-up-a-wsgi-server > > Regards > Sandeep > > > On Sat, Aug 31, 2019 at 10:25 PM Abhilash Raj <maxking(a)asynchronous.in> wrote: >> __ >> On Sat, Aug 31, 2019, at 8:49 AM, sandeep kumar wrote: >>> Hi Abhilash >>> >>> Thanks for your reply. -:) >>> >>> We are using apache httpd as webserver to redirect. >>> >>> the proxy pass in webserver is >>> >>> ProxyPass / http://localhost:8000 >>> ReverseProxyPass / http://localhost:8000 >> >> >> Can you put `base_url: http://localhost:8000/hyperkitty` in your mailman-hyperkitty.cfg and see that it works? :) >> >> This should not try any funny SSL redirection. >> >>> I don't have idea of deploying this in production, so I just went on searching and I found wsgi (say uwsgi) is required to send the requests from webserver to mailman. Correct me if I am wrong. >>> >>> I have few queries listed below. Please reply to them. >>> >>> Should I use the wsgi.py present in the directory of mailman-suite ...?? >> >> Yes, that is the one which is supposed to be used. >> >>> >>> What should be the ProxyPass ..?? Where should the first hit go from webserver ---> uwsgi ---> ?? >> >> uwsgi is web server running Mailman's web componenet. It doesn't need to hit anything. You can restart it directly when you want to restart Mailman's web component, you don't need to do anything to your web server (httpd) for this. >> >> >> >>> >>> Can we run "python manage.py runserver" every time to start mailman suite..?? Can we make mailman-suite start/stop just by restarting the HTTPD..?? >> >> >> No, use a wsgi server, like uwsgi or gunicorn to run mailman-suote. `python manage.runserver` is a command used during development shouldn't be used at all in prod. >> >>> >>> What should be the entry in Hyperkitty.cfg file after all the above steps..?? I mean at the end >>> >>> Please reply to the above queries. Thanks for your help >>> Regards >>> Sandeep >>> >>> >>> >>> >>> >>> On Sat, Aug 31, 2019 at 8:45 PM Abhilash Raj <maxking(a)asynchronous.in> wrote: >>>> On Sat, Aug 31, 2019, at 1:36 AM, sandeep kumar wrote: >>>> > Hi Team >>>> > >>>> > Iam seeing following errors while mailman is trying to archive in >>>> > mailman.log >>>> > >>>> > >>>> > This is my base URL in mailman-hyperkitty.cfg >>>> > >>>> > base_url: http://localhost/hyperkitty >>>> >>>> Are you sure this is the URL? this is http and Mailman shouldn't try to connect to this using HTTPS. >>>> >>>> Is your web server configured to redirect all HTTP traffic to HTTPS? If that is the case, then it is going to fail. >>>> >>>> Which wsgi server are you using? uwsgi? >>>> >>>> Can you also show your ProxyPass configuration? >>>> >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > *During handling of the above exception, another exception >>>> > occurred:Traceback (most recent call last): File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/adapters.py", >>>> > line 449, in send timeout=timeout File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/urllib3-1.24.1-py3.6.egg/urllib3/connectionpool.py", >>>> > line 638, in urlopen _stacktrace=sys.exc_info()[2]) File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/urllib3-1.24.1-py3.6.egg/urllib3/util/retry.py", >>>> > line 398, in increment raise MaxRetryError(_pool, url, error or >>>> > ResponseError(cause))urllib3.exceptions.MaxRetryError: >>>> > HTTPSConnectionPool(host='domain.com <http://domain.com>', port=443): >>>> > Max >>>> > retries exceeded with url: >>>> > /hyperkitty/api/mailman/archive?key=SecretArchiverAPIKey (Caused by >>>> > SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate >>>> > verify >>>> > failed (_ssl.c:841)'),))During handling of the above exception, another >>>> > exception occurred:Traceback (most recent call last): File >>>> > "/var/lib/mailman/mailman-hyperkitty/mailman_hyperkitty/__init__.py", >>>> > line >>>> > 154, in _archive_message url = self._send_message(mlist, msg) File >>>> > "/var/lib/mailman/mailman-hyperkitty/mailman_hyperkitty/__init__.py", >>>> > line >>>> > 201, in _send_message files={"message": ("message.txt", >>>> > message_text)}) >>>> > File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/api.py", >>>> > line 116, in post return request('post', url, data=data, json=json, >>>> > **kwargs) File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/api.py", >>>> > line 60, in request return session.request(method=method, url=url, >>>> > **kwargs) File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/sessions.py", >>>> > line 533, in request resp = self.send(prep, **send_kwargs) File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/sessions.py", >>>> > line 668, in send history = [resp for resp in gen] if allow_redirects >>>> > else [] File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/sessions.py", >>>> > line 668, in <listcomp> history = [resp for resp in gen] if >>>> > allow_redirects else [] File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/sessions.py", >>>> > line 247, in resolve_redirects **adapter_kwargs File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/sessions.py", >>>> > line 646, in send r = adapter.send(request, **kwargs) File >>>> > "/var/lib/mailman/venv3/lib64/python3.6/site-packages/requests-2.21.0-py3.6.egg/requests/adapters.py", >>>> > line 514, in send raise SSLError(e, >>>> > request=request)requests.exceptions.SSLError: >>>> > HTTPSConnectionPool(host=domain.com <http://domain.com>', port=443): Max >>>> > retries exceeded with url: >>>> > /hyperkitty/api/mailman/archive?key=SecretArchiverAPIKey (Caused by >>>> > SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate >>>> > verify >>>> > failed (_ssl.c:841)'),))* >>>> > >>>> > >>>> > Rgrds >>>> > Sandeep >>>> > >>>> > On Sat, Aug 31, 2019 at 10:20 AM sandeep kumar <sandeep7790(a)gmail.com> >>>> > wrote: >>>> > >>>> > > Team any help >>>> > > >>>> > > Sent from my iPhone >>>> > > >>>> > > > On 30-Aug-2019, at 11:18 PM, sandeep kumar <sandeep7790(a)gmail.com> >>>> > > wrote: >>>> > > > >>>> > > > Hi Team >>>> > > > >>>> > > > Iam using httpd to work with ssl on mailman 3 using proxy pass. >>>> > > > >>>> > > > After this configuration Iam not able to connect to hyperkitty. It is >>>> > > throwing ssl certificate error in mailman.log file. >>>> > > > >>>> > > > What should be the configuration of hyperkitty while using https in >>>> > > mailman..? >>>> > > > >>>> > > > Please help me with this Iam struck here from past 4 days >>>> > > > >>>> > > > Rgrds >>>> > > > Sandeep >>>> > > > >>>> > > > Sent from my iPhone >>>> > > >>>> > >>>> > >>>> > -- >>>> > Regards >>>> > Sandeep Kumar >>>> > +91-9642669192 >>>> > _______________________________________________ >>>> > Mailman-Developers mailing list -- mailman-developers(a)python.org >>>> > To unsubscribe send an email to mailman-developers-leave(a)python.org >>>> > https://mail.python.org/mailman3/lists/mailman-developers.python.org/ >>>> > Mailman FAQ: https://wiki.list.org/x/AgA3 >>>> > >>>> > Security Policy: https://wiki.list.org/x/QIA9 >>>> > >>>> >>>> -- >>>> thanks, >>>> Abhilash Raj (maxking) >>> >>> >>> -- >>> Regards >>> Sandeep Kumar >>> +91-9642669192 >>> >> >> -- >> thanks, >> Abhilash Raj (maxking) >> >> > > > -- > Regards > Sandeep Kumar > +91-9642669192 > -- thanks, Abhilash Raj (maxking)

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Mailman3 stopped sending out mail
by Abhijith PA 22 Nov '23

22 Nov '23

Hello. Recently my mailman3 instance stopped distributing mail. But mailman's own mail (notification, digest etc) and archiving are working OK. I couldn't figure what is going wrong From mail.log --- Dec 31 10:03:20 lists postfix/smtpd[10900]: Anonymous TLS connection established from mail.xxxx.xx[5.79.72.163]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits) Dec 31 10:03:20 lists postfix/smtpd[10900]: Anonymous TLS connection established from mail.xxxx.xx[5.79.72.163]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits) Dec 31 10:03:20 lists policyd-spf[10907]: prepend Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=5.79.72.163; helo=mail.xxxx.xx; envelope-from=abhijith(a)xxxx.xx; receiver=<UNKNOWN> Dec 31 10:03:20 lists policyd-spf[10907]: prepend Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=5.79.72.163; helo=mail.xxxx.xx; envelope-from=abhijith(a)xxxx.xx; receiver=<UNKNOWN> Dec 31 10:03:21 lists postfix/smtpd[10900]: 04C2412038F: client=mail.xxxx.xx[5.79.72.163] Dec 31 10:03:21 lists postfix/smtpd[10900]: 04C2412038F: client=mail.xxxx.xx[5.79.72.163] Dec 31 10:03:21 lists postfix/cleanup[10912]: 04C2412038F: message-id=<f875c144-a23c-baa2-7de2-1b102d3e7494(a)xxxx.xx> Dec 31 10:03:21 lists postfix/cleanup[10912]: 04C2412038F: message-id=<f875c144-a23c-baa2-7de2-1b102d3e7494(a)xxxx.xx> Dec 31 10:03:21 lists opendkim[450]: 04C2412038F: s=_teknikKey d=xxxx.xx SSL Dec 31 10:03:21 lists opendkim[450]: 04C2412038F: s=_teknikKey d=xxxx.xx SSL Dec 31 10:03:21 lists postfix/smtpd[10900]: disconnect from mail.xxxx.xx[5.79.72.163] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 commands=7 Dec 31 10:03:21 lists postfix/smtpd[10900]: disconnect from mail.xxxx.xx[5.79.72.163] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 commands=7 Dec 31 10:03:21 lists postfix/qmgr[13211]: 04C2412038F: from=<abhijith(a)xxxx.xx>, size=1699, nrcpt=1 (queue active) Dec 31 10:03:21 lists postfix/qmgr[13211]: 04C2412038F: from=<abhijith(a)xxxx.xx>, size=1699, nrcpt=1 (queue active) Dec 31 10:03:21 lists postfix/lmtp[10915]: 04C2412038F: to=<test3(a)lists.yyyy.yy>, relay=127.0.0.1[127.0.0.1]:8024, delay=0.87, delays=0.62/0.02/0.04/0.2, dsn=2.0.0, status=sent (250 Ok) Dec 31 10:03:21 lists postfix/lmtp[10915]: 04C2412038F: to=<test3(a)lists.yyyy.yy>, relay=127.0.0.1[127.0.0.1]:8024, delay=0.87, delays=0.62/0.02/0.04/0.2, dsn=2.0.0, status=sent (250 Ok) Dec 31 10:03:21 lists postfix/qmgr[13211]: 04C2412038F: removed Dec 31 10:03:21 lists postfix/qmgr[13211]: 04C2412038F: removed I am not sure why 'postfix/qmgr[13211]: 04C2412038F: removed' is happening. from /var/log/mailman3/smtp.log: Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) handling connection Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) Data: b'LHLO lists.xxxx.xx' Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) Data: b'MAIL FROM:<abhijith(a)xxxx.xx>' Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) sender: abhijith(a)xxxx.xx Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) Data: b'RCPT TO:<test3(a)xxxx.xx>' Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) recip: test3(a)xxxx.xx Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) Data: b'DATA' Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) Data: b'QUIT' Dec 31 10:03:21 2018 (6323) ('127.0.0.1', 48720) connection lost Dec 31 10:03:21 2018 (6323) Connection lost during _handle_client() Here again I am doubtful about 'Connection lost during _handle_client()'. Please help. Abhijith PA

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mailman-web compress - Invalid template socialaccount/login_cancelled.html
by Odhiambo Washington 11 Nov '23

11 Nov '23

Running an install on Debian12 VM. Getting a new error message that I haven't seen previously: (venv) mailman@debian12:~$ mailman-web compress Compressing... Invalid template socialaccount/login_cancelled.html: Invalid block tag on line 7: 'element', expected 'endblock'. Did you forget to register or load this tag? Invalid template account/verified_email_required.html: Invalid block tag on line 7: 'element', expected 'endblock'. Did you forget to register or load this tag? Error parsing template socialaccount/signup.html: socialaccount/base.html done Compressed 2 block(s) from 78 template(s) for 1 context(s). -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-) [How to ask smart questions: http://www.catb.org/~esr/faqs/smart-questions.html]

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ModuleNotFoundError: No module named 'mailman_web'
by gordon＠dickens.com 10 Nov '23

10 Nov '23

I have had mailman3 working great on Debian 11, however, I just upgraded to Debian 12 and, following the upgrade, mailman3 is not working and I am getting the following error message: ModuleNotFoundError: No module named 'mailman_web' Does anybody have any recommendations? Thanks! Gordon

5 24

Immediate notification to the administrator
by pau.baiges＠csuc.cat 02 Nov '23

02 Nov '23

Hello In Mailman, I have all the lists marked with the "Immediate notification to the administrator" option. Should list moderators receive immediate notification of new requests as well as daily reminders about the pending ones? List moderators (and list administrators) receive daily reminders of pending requests for approval, such as subscriptions to a moderated list or submissions that are held for some reason. Enabling this option results in immediate notifications being sent upon the arrival of new requests. When there's a message being held because it needs approval, it automatically sends an email to the list owners. However, it also states that it sends a daily reminder if the email remains unapproved, but it's not doing that. I'll show you how I have /etc/postfix/transport configured. I receive the first "owner" email, but not the daily one. list-owner(a)llistes.csuc.cat relay:[ip]:25 list(a)llistes.csuc.cat .. list-admin(a)llistes.csuc.cat ... list-bounces(a)llistes.csuc.cat ... list-confirm(a)llistes.csuc.cat ... list-join(a)llistes.csuc.cat ... list-leave(a)llistes.csuc.cat ... list-request(a)llistes.csuc.cat ... list-subscribe(a)llistes.csuc.cat ...

5 9

Reduction of spam - FROM_LOCAL_HEX
by Kyriakos Terzopoulos 31 Oct '23

31 Oct '23

Hi, After fixing all issues with mailman I want to reduce the chance for email being marked as spam, especially from Gmail. I have added SPF and DKIM records and I am now using dkimvalidator to debug the emails being sent. Here is what I'm getting from spam evaluation: *0.3 FROM_LOCAL_HEX From: localpart has long hexadecimal sequence* My guess is that the From address is very large, for example: mylist-confirm+3eafa5bd24e52738c900e2e3fd05e366b7ea7580(a)myproject.eu Is there any way to mitigate this problem? Thank you, *Kyriakos Terzopoulos* Web developer / e-learning expert *Tel:*+30 211 213 9858 *Mobile:* +30 694 526 4512 * E-mail: *kyriakos.terzopoulos(a)gmail.com * Skype:* kyriakos.terzopoulos Find me on Facebook <http://www.facebook.com/cirrus3d> Follow me on Twitter <http://twitter.com/#%21/cirrus3d>

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psycopg2 error?
by Odhiambo Washington 30 Oct '23

30 Oct '23

This is the first time I am seeing this with MM3 so maybe it's something new in the latest releases? Using the virtualenv method to install MM3 in a fresh Debian 12 VM, I have run into an error while starting the mailman3 service. I cannot figure out what this error means. <CUT> root@debian12:/home/wash# systemctl status mailman3.service × mailman3.service - GNU Mailing List Manager Loaded: loaded (/etc/systemd/system/mailman3.service; enabled; preset: enabled) Active: failed (Result: exit-code) since Thu 2023-10-26 09:36:41 EAT; 8s ago Process: 1893842 ExecStart=/opt/mailman/venv/bin/mailman start (code=exited, status=1/FAILURE) CPU: 789ms Oct 26 09:36:41 debian12.wash.lan mailman[1893842]: dbapi = dbapi_meth(**dbapi_args) Oct 26 09:36:41 debian12.wash.lan mailman[1893842]: ^^^^^^^^^^^^^^^^^^^^^^^^ Oct 26 09:36:41 debian12.wash.lan mailman[1893842]: File "/opt/mailman/venv/lib/python3.11/site-packages/sqlalchemy/dialects/postgresql/psycopg2.py", line 690, in import_dbapi Oct 26 09:36:41 debian12.wash.lan mailman[1893842]: import psycopg2 Oct 26 09:36:41 debian12.wash.lan mailman[1893842]: File "/opt/mailman/venv/lib/python3.11/site-packages/psycopg2/__init__.py", line 51, in <module> Oct 26 09:36:41 debian12.wash.lan mailman[1893842]: from psycopg2._psycopg import ( # noqa Oct 26 09:36:41 debian12.wash.lan mailman[1893842]: SystemError: initialization of _psycopg raised unreported exception Oct 26 09:36:41 debian12.wash.lan systemd[1]: mailman3.service: Control process exited, code=exited, status=1/FAILURE Oct 26 09:36:41 debian12.wash.lan systemd[1]: mailman3.service: Failed with result 'exit-code'. Oct 26 09:36:41 debian12.wash.lan systemd[1]: Failed to start mailman3.service - GNU Mailing List Manager. </CUT> No log entry in any of the log files in /opt/mailman/mm/var/logs/. -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-) [How to ask smart questions: http://www.catb.org/~esr/faqs/smart-questions.html]

3 11

disabled users
by Servizio Informatico U.I.C.I. Sezione territoriale di Brescia 27 Oct '23

27 Oct '23

Hello, Wher I find the disabled user of a mailing list and wher I can reactivate them? I do not find this nor in web interface neither in command line utility. Thank you best regards -- Roberto Burceni Servizio informatico sezionale Tel. 0302209417 (lunedì e giovedì mattina dalle 9:00 alle 13:00, martedì emercoledì pomeriggio dalle 14:00 alle 18:00 E-mail: servizioinformatico(a)uicibrescia.it Sito web: https://www.uicibrescia.it

3 6

(Custom) Plugins: Proper file path(s) for adding a handler?
by Thomas Ward 25 Oct '23

25 Oct '23

I want to add a custom handler that implements customized thread IDs in the system. I already have the DB logic worked out, but the documentation for plugins is NOT clear on how to define a handler in a plugin, nor does the example plugin in the documentation on Gitlab have any custom handlers. I'm looking to add a custom handler so that the private pipeline for threaded-subject-list can use thread-subject (the custom handler) instead of subject-prefix (builtin). I'm unclear how to add this properly in a plugin that would be read properly by Mailman, though. Any tips on the filestructure needed for the Python code/plugin package in order to properly be set up and work? Thomas

3 14

rDNS issue? Helo name contains an IP address (HELO was [127.0.0.1]) and not is valid
by Kyriakos Terzopoulos 25 Oct '23

25 Oct '23

Hi all, I'm on the latest mailman installation in a HestiaCP server. The past few days I have been investigating some spam issues and by using dkimvalidator.com I found the following: 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -1.0 MAILING_LIST_MULTI Multiple indicators imply a widely-seen list manager* 3.2 HELO_DYNAMIC_IPADDR Relay HELO'd using suspicious hostname (IP addr 1)* Note the last line on the above debug information which raises the spam score of the email. Some research showed me that I needed a rDNS entry in my server. I'm on a Hetzner cloud VM so I used the Hetzner console to change the rDNS entry from: static.XXX.XXX.XXX.XXX.clients.your-server.de to my initial server hostname for example: *hestia.myserver.com <http://hestia.myserver.com>* However, after some propagation, I found today that even though I can send email to any normal address created in the server's control panel, mailing list emails do not get sent. I see the following in the logs: Mailman SMTP log: Oct 24 14:17:47 2023 (3759611) <169814622178.3759638.4589434779084932533@localhost> *response exception: (550, b'Helo name contains an IP address (HELO was [127.0.0.1]) and not is valid'*, 'testlist-bounces+myusername=myproject.eu(a)myproject.eu') Oct 24 14:17:47 2023 (3759611) <169814622178.3759638.4589434779084932533@localhost> smtp to testlist(a)myproject.eu for 1 recips, completed in 45.07745146751404 seconds Oct 24 14:17:47 2023 (3759611) <169814622178.3759638.4589434779084932533@localhost> post to testlist(a)myproject.eu from testlist-confirm+07d3315fa11a75588857fc93d1832ba74fb09fdd(a)myproject.eu, 1633 bytes, 1 failures Oct 24 14:17:47 2023 (3759611) <169814622178.3759638.4589434779084932533@localhost> delivery to myusername(a)myproject.eu failed with code 550, b*'Helo name contains an IP address (HELO was [127.0.0.1]) and not is valid'* Exim4 log: 2023-10-24 14:17:47 H=([127.0.0.1]) [XXX.XXX.XXX.XXX] rejected MAIL <testlist-bounces+myusername=myproject.eu(a)myproject.eu>: *Helo name contains an IP address (HELO was [127.0.0.1]) and not is valid* The weird thing is that when I do a mailman-web sendtestemail this email is sent successfully. Also please note that before the rDNS change I did not have an issue with mail sending. Last but not least, after some search I set in Exim4 the following: PRIMARY_HOST_NAME = *hestia.myserver.com <http://hestia.myserver.com>* Any help would be greatly appreciated. *Kyriakos Terzopoulos *Web developer / e-learning expert *Tel:*+30 211 213 9858 *Mobile:* +30 694 526 4512 * E-mail: *kyriakos.terzopoulos(a)gmail.com * Skype:* kyriakos.terzopoulos Find me on Facebook <http://www.facebook.com/cirrus3d> Follow me on Twitter <http://twitter.com/#%21/cirrus3d>

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