Hello all,
Would any of you know if the following scenario is "doable"?
We run an old Exchange 2010 infrastructure at my work, and there is no way
they are going to spring for newer: getting them to go from 2003 to 2010
was an ordeal...
Could I set up an Ubuntu Postfix "relay" server between Exchange and the
Internet, that also permits one particular mailbox to be accessible from a
Dovecot install on the same server (as well as relaying the mail for that
mailbox to Exchange)?
Yes/no and pointers most welcomed.
Kind regards
Murray Crane
Hi All,
I am trying, and failing, to set up postfix and google is not playing nice.
The domain name of my server is ianhobson.com
The message I sent is
echo "This is the message body" | mail -s "Hello world 7"
hobson42(a)google.com
The txt record for ianhobson.com contains the entry:
v=spf1 ip4:85.119.83.63 ip6:2001:ba8:1f1:f159::2 include:_spf.google.com
-all
My message bounced ...
--000000000000779e540603f583f0
Content-Type: message/rfc822
X-Google-Smtp-Source:
AGHT+IEp9prm+RYt9RU4zCwTQ3RtchA2FcY6YsplVKwCVE6xm4NDC8r9xgRVISiZKbp+XA0ARsLc
X-Received: by 2002:a05:600c:b42:b0:3fe:1fd9:bedf with SMTP id
k2-20020a05600c0b4200b003fe1fd9bedfmr19347254wmr.11.1693202867117;
Sun, 27 Aug 2023 23:07:47 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1693202867; cv=none;
d=google.com; s=arc-20160816;
b=B1rJ+GcvNSZSWuXvkd0eJmcKuTh3u5xYoevSMwGo9AYZiBFw7zxRTp1TyUDCytUxPj
X88FC/M2i02OY3hbpWZovRTvfTt7qDr9foar4MejQ2AUaoNPSCzGhw4mh3N8L6jpYOAZ
Bwp2+1Uu0cOJEAxkcolV5vpepJNLyviWo+tugpPQ1VoOVkbnnYkc1e3W62jJZkUyQmW4
dyKhs261pJxj3t+mRaXCuu0KCpubpUFut3MTCCrc+YDqWoe1l3Iqmdq3vUctAF5zCyZx
q9Hm5KaLnL8ByBD06KGMExVYrrl1KSPkduHP4eO5b3Wf5onH6BoqcA9RVG1NDCvj572J
X1BA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed;
d=google.com; s=arc-20160816;
h=from:date:message-id:to:subject;
bh=xAjO0M9TPUb7cMQCtftlB6qyGZ///K1cOTl9KtbIS7o=;
fh=GAhnp/c7C3JdQ2Hhj44GY0EPYm7p/BemqzOophPSH38=;
b=z29ZintE4XH0/vzj1A2PMoWhUCMlbKIYVh/919smU+pbaTWrxezz+MDno71mRW2pzn
RL/q7mS3GNHVcAp8VadqeAomBQetQ9fexWmClyBhynFNma5JYRnxZFqzNBpDtKnQBO5f
34tk7vXrVRhC7gobov93uvJ0n2A8BaDcL7FMqthLdizMW7UuzcMNV01gnPw1S0e4Ru1b
jBtDeToW5GPdAPBeYM63ndMgxelMIQr5DZhhsf6dMdjN+qefkmXG0FSRCXTkxAeE0ImL
ulduc7GYoL1nCQ1O5Q/0U8+L4mB+oJXiHeWRFY9zyO67WWXImeZJ/kwPF6Esc/3prF+a
hOig==
ARC-Authentication-Results: i=1; mx.google.com;
spf=fail (google.com: domain of ian(a)ianhobson.com does not
designate 2001:ba8:1f1:f159::2 as permitted sender)
smtp.mailfrom=ian(a)ianhobson.com
Return-Path: <ian(a)ianhobson.com>
Received: from ianhobson.com
(2001-ba8-1f1-f159-0-0-0-2.autov6rev.bitfolk.space. [2001:ba8:1f1:f159::2])
by mx.google.com with ESMTPS id
n27-20020a05600c181b00b003fee7bfd47dsi5015614wmp.74.2023.08.27.23.07.47
for <hobson42(a)google.com>
(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
Sun, 27 Aug 2023 23:07:47 -0700 (PDT)
Received-SPF: fail (google.com: domain of ian(a)ianhobson.com does not
designate 2001:ba8:1f1:f159::2 as permitted sender)
client-ip=2001:ba8:1f1:f159::2;
Authentication-Results: mx.google.com;
spf=fail (google.com: domain of ian(a)ianhobson.com does not
designate 2001:ba8:1f1:f159::2 as permitted sender)
smtp.mailfrom=ian(a)ianhobson.com
Received: by ianhobson.com (Postfix, from userid 1000)
id DA2F7C00C5; Mon, 28 Aug 2023 07:07:46 +0100 (BST)
Subject: Hello world 7
To: <hobson42(a)google.com>
X-Mailer: mail (GNU Mailutils 3.7)
Message-Id: <20230828060746.DA2F7C00C5(a)ianhobson.com>
Date: Mon, 28 Aug 2023 07:07:46 +0100 (BST)
From: Ian Hobson <ian(a)ianhobson.com>
This is the message body
--000000000000779e540603f583f0--
The proofpoint check
https://www.proofpoint.com/us/cybersecurity-tools/dmarc-spf-creation-wizard…
confirms the data.
What is going wrong?
Thanks
Ian
--
Ian Hobson
Tel (+66) 626 544 695
Hi All,
My VPS normally has 45% to 50% disk space free. (7GB)
This morning I find that it ran out of disk space on 22nd, and this
stopped email alerts getting to me, stopped all the websites from
working. All my clients were emailing to ask what was wrong, and those
emails were not getting through either. :(
I do have fail2ban set up, and uptime robot is checking the websites are
up.
How can I set up something to alert me of this problem before it becomes
critical? Say disk space used over 75%.
Many thanks
Ian
--
Ian Hobson
Tel (+66) 626 544 695
The latest emails from the list are all falling foul of Fastmail’s spam checking:
X-Spam-score: 11.1
X-Spam-hits: BAYES_00 -1.9, DCC_REPUT_13_19 -0.1, HTML_MESSAGE 0.001,
MAILING_LIST_MULTI -1, ME_HAS_VSSU 0.001, ME_SENDERREP_NEUTRAL 0.001,
RCVD_IN_SBL_CSS 3, RCVD_IN_ZEN_LASTEXTERNAL 8, SH_BODYURI_REVERSE_CSS 3,
SPF_HELO_NONE 0.001, SPF_PASS -0.001, URIBL_CSS_A 0.1, LANGUAGES en,
BAYES_USED user, SA_VERSION 3.4.6
X-Spam-source: IP='85.119.80.246', Host='lists0.bitfolk.com', Country='GB',
FromHeader='com', MailFrom=‘com'
It appears to be because 85.119.80.246 is in the Spamhaus CSS block list:
https://check.spamhaus.org/listed/?searchterm=85.119.80.246
Looks like you can request removal on that page.
Cheers,
Mike
Hi,
CentOS Stream 9 is now available for self-install and new installs.
https://tools.bitfolk.com/wiki/Using_the_self-serve_net_installer/CentOS_St…
We haven't yet sorted out installers for Alma Linux, Rocky Linux or
any of the other CentOS-like distributions and although that would
be pretty simple I'm not sure that we will do that. It depends upon
demand. I believe it's the case that as with CentOS Stream 8.x, you
can convert from it to Alma, Rocky or even RHEL without reinstall
using a script, so that might have to be the BitFolk-recommended way
to do that.
We are also going to consult about how much demand there is for RHEL
itself. Although that does require a Red Hat subscription, an
individual can get a no-cost subscription for personal use on up to
16 systems.
We do have to run these VMs under the kernel-lt or kernel-ml kernels
from ELRepo though, because Red Hat disables Xen support in its
kernels. Therefore such a VM may not be eligible for any form of
support from Red Hat which may result in there being no customer
demand to do so.
Thanks,
Andy
--
https://bitfolk.com/ -- No-nonsense VPS hosting
Hi,
I upgraded my Debian system from Bullseye to Bookworm earlier today. It mostly went pretty smoothly, but I have two questions:
1. I remembered to change the interface name from eth0 to enX0 but couldn't connect to any regular network services (ssh, httpd) after the system was rebooted. I used the Xen shell to change the interface name back to eth0, and could connect again after a reboot. Are some systems happy to stay as eth0? This is quite an old system and has been upgraded in place over several years (started as a Debian 5.x (Lenny) system in 2009.
2. The sysv-rc-conf package is being held back when I apt-get upgrade. If I try to upgrade it, apt wants to remove a load of packages (about 30). Can I safely just remove the sysv-rc-conf package? /sbin/init is a symlink to /lib/systemd/systemd, so I presume I'm using systemd and don't need sysv-rc-conf?
--
Jamie MacIsaac
jamie(a)macisa.ac
