[pfx] Re: improper command pipelining

2024-01-15 Thread Admin Beckspaced via Postfix-users
Looks like security scanner. do you know the type of encoding? I would like to decode and see the actual commands. after CONNECT usually TLS negotiation occurs, that may be it. I don't know if there's any value in knowing that. thanks i was just curious :) Jan 14 01:57:15 cx20

[pfx] Re: improper command pipelining

2024-01-15 Thread Admin Beckspaced via Postfix-users
somoene is trying to use your postfix as http proxy server. Looks like security scanner. do you know the type of encoding? I would like to decode and see the actual commands. Jan 14 01:57:15 cx20 postfix/submission/smtpd[25120]: improper command pipelining after CONNECT from

[pfx] improper command pipelining

2024-01-15 Thread Admin Beckspaced via Postfix-users
dear postfix users, since the recent SMTP smuggling issue I applied the short term workaround by setting smtpd_forbid_unauth_pipelining = yes I also do a daily scan on journalctl with some keywords, e.g. 'pipelining' the following showed up this morning. do i need to be worried? thanks &

[pfx] Re: 25 years today

2023-12-16 Thread Admin Beckspaced via Postfix-users
Am 14.12.2023 um 14:20 schrieb Wietse Venema via Postfix-users: As a few on this list may recall, it is 25 years ago today that the "IBM secure mailer" had its public beta release. This was accompanied by a nice article in the New York Times business section. Happy anniversary and thanks Wietse

Re: Postfix 3.5.9 SSL accept error Microsoft Exchange

2022-04-11 Thread Admin Beckspaced
would it be as easy to just add the following to main.cf to use the reommended setting? smtpd_tls_chain_files = /etc/dehydrated/certs/mail-beckspaced-com-rsa/privkey.pem      /etc/dehydrated/certs/mail-beckspaced-com-rsa/fullchain.pem    

Re: Postfix 3.5.9 SSL accept error Microsoft Exchange

2022-04-10 Thread Admin Beckspaced
Or switch my cert to RSA for better compatibility? This is my recommendation. On Sat, Apr 09, 2022 at 11:15:37AM +0200, Josef Vybíhal wrote: smtpd_tls_cert_file = /etc/postfix/tls/rsa/_.acme.com.rsa.fullchain.pem smtpd_tls_eccert_file = /etc/postfix/tls/ecc/_.acme.com.ecc.fullchain.pem

Re: Postfix 3.5.9 SSL accept error Microsoft Exchange

2022-04-09 Thread Admin Beckspaced
Am 09.04.2022 um 10:06 schrieb Viktor Dukhovni: On Sat, Apr 09, 2022 at 08:52:54AM +0200, Admin Beckspaced wrote: Apr  8 09:53:07 cx20 postfix/smtpd[5402]: warning: TLS library problem: error:1417A0C1:SSL routines:tls_post_process_client_hello:no shared cipher:ssl/statem/statem_srvr.c

Postfix 3.5.9 SSL accept error Microsoft Exchange

2022-04-09 Thread Admin Beckspaced
Dear Postfix users, a client told me they don't receive emails from a specific client. A look in the mail server logs reveals the following: Apr  8 09:53:07 cx20 postfix/smtpd[5402]: connect from mail.euronet-ag.de[195.14.239.4] Apr  8 09:53:07 cx20 postfix/smtpd[5402]: SSL_accept error from

Re: Postscreen Logfile Analyser

2020-09-12 Thread Admin Beckspaced
I use pslogscan for postscreen https://archive.mgm51.com/sources/pslogscan.html and pflogsumm for daily mail stats https://jimsun.linxnet.com/postfix_contrib.html Am 11.09.2020 um 21:29 schrieb Tamás Gérczei: I use pflogsumm. On 9/11/20 9:08 PM, Michael Orlitzky wrote: On 2020-09-11 14:24,

Re: BCC on local delivery agent?

2020-05-10 Thread Admin Beckspaced
:40 AM, @lbutlr wrote: On 08 May 2020, at 02:54, Admin Beckspaced wrote: ups ... I think I can answer my own question? Why is it that the answer mostly comes once the email has been sent ;) Because if it came before, you wouldn’t sent the message! (90% of the email questions I write are never sent

Re: BCC on local delivery agent?

2020-05-08 Thread Admin Beckspaced
Hi, The quota warning email is send via Dovecot LDA (https://wiki.dovecot.org/LDA) This is the command in the shell script: /usr/lib/dovecot/dovecot-lda -f nore...@beckspaced.com -d $USER -o "plugin/quota=dict:User quota::noenforcing:proxy::quota" as you said the dovecot quota warning calls

Re: BCC on local delivery agent?

2020-05-08 Thread Admin Beckspaced
Am 08.05.2020 um 10:38 schrieb Admin Beckspaced: Dear postfix users, I have setup dovecot with quota warning. The quota warning email is send via Dovecot LDA (https://wiki.dovecot.org/LDA) This is the command in the shell script: /usr/lib/dovecot/dovecot-lda -f nore...@beckspaced.com -d

BCC on local delivery agent?

2020-05-08 Thread Admin Beckspaced
Dear postfix users, I have setup dovecot with quota warning. The quota warning email is send via Dovecot LDA (https://wiki.dovecot.org/LDA) This is the command in the shell script: /usr/lib/dovecot/dovecot-lda -f nore...@beckspaced.com -d $USER -o "plugin/quota=dict:User

Re: saslauthd problem

2020-04-17 Thread Admin Beckspaced
Hi there, remember having a similar issue with saslauthd and cut off user names. Postfix doc has the proper info http://www.postfix.org/SASL_README.html %u -     The name of the user whose properties are being selected. %r -     The name of the realm to which the user belongs. This could be

Re: check policy service postfwd

2019-03-01 Thread Admin Beckspaced
This is not a Postfix problem until you can demonstrate that Postfix fails to call postfwd. smtpd_mumble_restrictions names and policy protocol activity are logged with verbosity level=1. To turn this on selectively: main.cf: debug_peer_list = 10.1.2.0/24 10.3.4.0/24 (or whatever the Facebook

Re: check policy service postfwd

2019-03-01 Thread Admin Beckspaced
Admin Beckspaced: anyway I was thinking that every incoming message postfix receives will get send to postfwd for further inspections? That depends on where in smtpd_mumble_restrictions the 'check_policy_service' appears. Hint: show "postconf -n" instead of main.cf cut

Re: check policy service postfwd

2019-02-28 Thread Admin Beckspaced
anyway I was thinking that every incoming message postfix receives will get send to postfwd for further inspections? That depends on where in smtpd_mumble_restrictions the 'check_policy_service' appears. Hint: show "postconf -n" instead of main.cf cut and paste. Wietse thanks

Re: check policy service postfwd

2019-02-28 Thread Admin Beckspaced
Admin Beckspaced: anyway I was thinking that every incoming message postfix receives will get send to postfwd for further inspections? That depends on where in smtpd_mumble_restrictions the 'check_policy_service' appears. Wietse it appears here -> smtpd_end_of_data_restricti

check policy service postfwd

2019-02-28 Thread Admin Beckspaced
dear postfix users, i'm running postfix version 3.2.0 with postscreen, amavis-new, spamassassin. recently I added postfwd 1.39 as a check policy service. implementation in main.cf see below at the end of the mail if you need the output of postconf or master.cf then please let me know ... I

Re: How to protect against compromised email account password

2019-02-20 Thread Admin Beckspaced
Am 20.02.2019 um 03:39 schrieb Bill Cole: On 19 Feb 2019, at 5:56, Admin Beckspaced wrote: Dear Postfix Users, just recently the computer of a client got infected with malware and the email password was compromised. The bad guys immediately started sending out spam emails via our mail

Re: How to protect against compromised email account password

2019-02-19 Thread Admin Beckspaced
Thanks Christos, so I might want to look into rate limits. Have not looked into rspamd as I'm running postfix with amavis-new and spamassassin Is rspamd compatible with amavis-new? Thanks & greetings Becki Am 19.02.2019 um 12:23 schrieb Christos Chatzaras: We wrote a shell script that runs

Re: How to protect against compromised email account password

2019-02-19 Thread Admin Beckspaced
hat effective mitigating strategy, and as they say, perfect is the enemy of serviceable. I'd love to hear how other site admins manage this problem :) Kind regards, Daniel On 19/02/2019 11:56, Admin Beckspaced wrote: Dear Postfix Users, just recently the computer of a client got infected with malwar

How to protect against compromised email account password

2019-02-19 Thread Admin Beckspaced
Dear Postfix Users, just recently the computer of a client got infected with malware and the email password was compromised. The bad guys immediately started sending out spam emails via our mail servers. We got notified by our monitoring system a bit later ... and fixed things But lots and

Re: Send a BCC based on header check after receiving mail back from amavis-new

2019-01-02 Thread Admin Beckspaced
Am 01-Jan-19 um 17:35 schrieb Bastian Blank: On Tue, Jan 01, 2019 at 12:17:15PM +0100, Admin Beckspaced wrote: If amavis-new detects some spam it will add headers like: based on those tags I would like to send a BCC to my spam collecting s...@address.com for further inspection and review. Ask

Send a BCC based on header check after receiving mail back from amavis-new

2019-01-01 Thread Admin Beckspaced
Hello there, first, all the best wishes for 2019! Let it be a good new year for all of us ;) I'm running a SuSE Box with postfix version 3.2.0 I also do SPAM checking via amavis-new and spamassassin after the mail passes postscreen it's directed to amavis-new amavis-new then re-injects the

Re: Installing LetsEncrypt For Postfix and Dovecot

2018-11-28 Thread Admin Beckspaced
Am 28-Nov-18 um 10:03 schrieb Matus UHLAR - fantomas: On 27.11.18 10:52, Asai wrote: With Mozilla recently dropping support for all Symantec certs, our security cert now throws errors on Thunderbird clients.  We’d like to install certbot on Centos 6, but I’m not sure if it’s going to

Looking for an 'easy' postfix log file analysis tool

2018-08-26 Thread Admin Beckspaced
Hello there ;) I'm looking for a simple, clean & easy logfile analysis tool for postfix logs. I'm runing postfix 3.2 on an opensuse box I found a listing here: http://www.postfix.org/addon.html#logfile already had a look at mailgraph as it looked promising with the graphical charts. but

Re: Letsencrypt tip

2017-09-11 Thread Admin Beckspaced
On 11.09.2017 10:59, Gary wrote: As you know, letsencrypt certs can be automatically updated. However, you need to reload/restart Postfix/Dovecot to use the new cert. My email client insisted I had an expired cert. I couldn't download or send email. (Fortunately I'm on a test domain, getting

Re: relay host & client throttling

2017-09-03 Thread Admin Beckspaced
On 01.09.2017 14:09, Matus UHLAR - fantomas wrote: On 01.09.17 10:37, Admin Beckspaced wrote: but let's say I do a fail2ban restart on one of the servers lots of fail2ban notify emails will get send via the relayhost resulting in the relayhost throttling down the other server which

relay host & client throttling

2017-09-01 Thread Admin Beckspaced
Dear postfix community, I got a few servers all running postfix 2.11.x Then I got my main mail server and all other servers use this as relayhost. authentication to relayhost is done via sasl auth and all is working fine and as expected ;) but let's say I do a fail2ban restart on one of the

Re: postfix access map

2017-02-20 Thread Admin Beckspaced
On 20.02.2017 17:54, Viktor Dukhovni wrote: On Feb 20, 2017, at 4:31 AM, Admin Beckspaced <ad...@beckspaced.com> wrote: I always had the impression that an OK will skip all further tests in any restrictions lists following. I now added in smtpd_recipient_restrictions before the RBL

Re: postfix access map

2017-02-20 Thread Admin Beckspaced
On 20.02.2017 09:35, Dominic Raferd wrote: On 20 February 2017 at 07:58, Admin Beckspaced <ad...@beckspaced.com <mailto:ad...@beckspaced.com>> wrote: Dear Postfix users, First a belated BIG THANK YOU to Wietse and his 20 years of Postfix. You're awesome! Seco

postfix access map

2017-02-19 Thread Admin Beckspaced
Dear Postfix users, First a belated BIG THANK YOU to Wietse and his 20 years of Postfix. You're awesome! Second: I'm running Postfix version 2.11.6 and have setup an access map of sender email addresses someu...@somedomain.com OK then doing a postmap on the access map and in the main.cf

Re: Unable to use encrypted password for imap and pop3

2017-02-11 Thread Admin Beckspaced
postfix does not provide pop3 & imap! have a look at the Dovecot (your pop3 & imap service) SSL configuration as pointed in the tutorial: http://wiki2.dovecot.org/SSL/DovecotConfiguration greetings Becki On 11.02.2017 08:25, dan...@msw.it wrote: Hi friends, Following the Workaround

Re: SSL_accept error from other MTA

2017-01-15 Thread Admin Beckspaced
On 15.01.2017 07:39, Noel Jones wrote: On 1/14/2017 2:40 AM, Admin Beckspaced wrote: All other MTA's don't seem to have any problems with TLS / STARTTLS. What can I do to fix this problem? Let the other MTA know that they got an issue with their TLS setup? Thanks & greetings Becki If

Re: SSL_accept error from other MTA

2017-01-14 Thread Admin Beckspaced
On 14.01.2017 14:03, Christian Kivalo wrote: You could set smtpd_tls_loglevel = 1 and get some more information on the next connection attempt. Without knowing more details i'd say you have no cipher in common, that could be when you're dealing with an ancient version of exchange or some

SSL_accept error from other MTA

2017-01-14 Thread Admin Beckspaced
Dear postfix users, I'm running Postfix version 2.11.6 on an OpenSUSE 42.1 box and all is running sweet & fine ;) Except a customer calls me that he can't receive emails from one of his partners. After looking for the partner email I found those log entries: 2017-01-14T00:31:28.312121+01:00

Re: mysql lookup table and utf8

2016-09-13 Thread Admin Beckspaced
Am 13.09.2016 um 14:22 schrieb Antoine Nguyen: On 13/09/2016 12:43, Wietse Venema wrote: Antoine Nguyen: On 12/09/2016 17:04, Wietse Venema wrote: Just for test, what happens when you do: (this is what Postfix daemons use by default) LC_ALL=C postmap -q rat?.com

Re: Postfix in separate log

2016-06-26 Thread Admin Beckspaced
Am 25.06.2016 um 21:44 schrieb Christian Schmitz (list): El Miércoles 22 Junio 2016, Admin Beckspaced escribió: Am 22.06.2016 um 15:32 schrieb Christian Schmitz (list): Hi: I have a postfix running on opensuse LEAP42.1. This distro have journal as default logging system, i really dislike

Re: Postfix in separate log

2016-06-22 Thread Admin Beckspaced
Am 22.06.2016 um 15:32 schrieb Christian Schmitz (list): Hi: I have a postfix running on opensuse LEAP42.1. This distro have journal as default logging system, i really dislike this system and i want that postfix create their own "/var/log/mail-postfix" file. Is possible? If yes, How i can do

Re: Mails rejected due to SPF?

2016-06-01 Thread Admin Beckspaced
Am 01.06.2016 um 13:41 schrieb Wietse Venema: Admin Beckspaced: i had a similar issue a while back ago when switching to new servers. the new servers supported the IPv6 protocol and as far as i remember IPv6 is always preferred before IPv4. my problem was a missing IP reverse DNS entry

Re: Mails rejected due to SPF?

2016-05-31 Thread Admin Beckspaced
Am 31.05.2016 um 21:03 schrieb A. Schulze: Am 31.05.2016 um 19:09 schrieb Johannes Bauer: Hello list, I know this is a bit off-topic, but I'm not sure if I misconfigured Postfix to result in this: Just today, an email of mine was rejected due to SPF reasons: host