On Fri, Nov 22, 2024 at 7:51 AM Matthew McGehrin via Postfix-users
wrote:
>
> Hello
>
> Perhaps just a secondary port without TLS for legacy devices. TLS isn't
> required for SMTP.
And maybe a separate vlan for printers or legacy devices.
> See also:
>
> https://ciphersuite.info/
>
> For
On Tue, Apr 26, 2022 at 1:54 AM wrote:
>
> Hello,
>
> This is off topic anyway but I think you're right. Fail2ban is not for the
> lazy, it's for people who have a lot of time to lose in an inefficient
> solution. Before cloud era F2B was a really great solution, but as it's been
> pointed out,
On Mon, Apr 25, 2022 at 12:28 AM ミユナ (alice) wrote:
>
> do you know how to stop passwords from being brute-forced for a
> mailserver? do you have any practical guide?
>
What about multifactor authentication?
> thank you.
On Wed, Feb 24, 2021 at 4:58 PM Emmett Culley
wrote:
>
> On 2/24/21 12:40 PM, Dirk Stöcker wrote:
> > On Wed, 24 Feb 2021, Wietse Venema wrote:
> >
> >> Postfix version 3.6 deprecates terminology that implies white is
> >> better than black. Instead, Postfix prefers 'allowlist', 'denylist',
> >> a
On Wed, Feb 10, 2021 at 4:21 PM Ron Garret wrote:
>
> Hello (not helo :-)
>
> I am working on a spam filter and so I find myself spending a lot more
> quality time with mail logs than I used to. One of the things I have noticed
> is that I will get a lot of connections that send a HELO command
On Sun, Jan 19, 2020 at 7:40 PM Wesley Peng wrote:
>
> How to compile postfix into the Embedded operating system (such as the home
> router) and make it as a mail gateway for Smart home appliances?
>
Main issue I have here is your router has a very important job
to do (routing traffic) an
On Fri, Mar 22, 2019 at 9:46 PM Bill Cole
wrote:
>
> On 22 Mar 2019, at 19:19, Christian Schmitz wrote:
>
> > Hi everyone:
> > I have a small mail server with fewer emails account, The server is:
> > Opensuse/Postfix/apache
> >
> > Today i receive a pishing email Words more or less say that
On Wed, Mar 6, 2019 at 7:50 AM De Petter Mattheas
wrote:
>
> Comments below
>
> Thanks for the help by the way :)
>
> -Original Message-
> From: patpro
> Sent: 06 March 2019 13:34
> To: De Petter Mattheas
> Cc: Postfix users ; owner-postfix-us...@postfix.org
> Subject: Re: stress tested
On Wed, Jan 30, 2019 at 2:51 PM Paul C wrote:
>
> mxtoolbox is a great tool to see almost all blacklists on your ips, as
> Luciano mentioned, but yahoo doesn't report their own blacklists so
> that tool can only tell you if the ips have been blacklisted in other
> places. TSS09 is the same as yaho
On Wed, Oct 25, 2017 at 3:46 AM, Petri Riihikallio
wrote:
>> Hi, I have found in my /etc/postfix directory list of duplicated files. I
>> attach .txt file with this list. I don't do anything with postfix from few
>> months. If it's not normal please tell me how fix it.
>
> Many editors (Vim, Ema
On Mon, Oct 16, 2017 at 7:32 AM, Maurizio Caloro wrote:
> Hello Together
> Please i have a lot of this messages, exist here any possibilities to ban
> this ip or host, so this will try every view min.
>
>
>
> Oct 16 12:33:59 mail postfix/smtpd[23436]: warning: hostname walkerj235.com
> does not re
On Sat, Apr 16, 2016 at 7:28 AM, Peter wrote:
> On 16/04/16 06:59, David Mehler wrote:
>> I'm looking for an autoresponder, free, and one that does not rely on
>> postfixadmin.
>
>
> In addition to sieve which was already mentioned the vacation script
> that comes with postfixadmin can be installe
ilq says:
>
> -Queue ID- --Size-- Arrival Time -Sender/Recipient---
> 5B0A235E18A* 449 Wed Mar 2 18:27:55
> srs0=hrq4=o6=..de=r...@yyyy.de
> dietrich.streif...@googlemail.com
>
>
>
>
> Am 02.03.2016 um 18:23 schrieb Mauricio Tavares:
>>
On Wed, Mar 2, 2016 at 12:09 PM, Dietrich Streifert
wrote:
> Hi all,
>
> I'm running centos 7.2 with postfix 2.10.1, installed from the standard
> centos 7 repo which corresponds to rhel 7.
>
> I'm using php mail to send mails which uses /usr/sbin/sendmail -t -i to
> send the mail.
>
> On my prev
On Fri, Oct 23, 2015 at 6:02 AM, Wietse Venema wrote:
> helices:
> [ Charset windows-1252 converted... ]
>> I've been through this before. Yes, I know MTA isn't preferred for such.
>> This isn't happening elsewhere.
>>
>> We have 100s of domains. For example, To:i...@domain1.com will get
>> delive
On Aug 13, 2015 5:20 PM, "Leonardo Rodrigues"
wrote:
>
>
> Em 13/08/15 12:07, Motty Cruz escreveu:
>
>>
>> Hello,
>>
>> Can I configure Postfix to reject emails with extensions .review? I get
a lot of emails with extensions .date, .br.
>>
>>
>
> attachments can be encoded in lots of different
On Wed, Jun 17, 2015 at 8:23 PM, Noel Jones wrote:
> Postfix plays well with both of these, there should be no unexpected
> behavior whichever you choose.
>
> I personally think dovecot is easy to set up and simple to interface
> with postfix, so that's the way I lean. Dovecot may have other
> ad
On Tue, Jun 16, 2015 at 9:51 AM, Jithesh AP wrote:
> Ok thank you for the info, this did scare me :). Its taxing my small system.
>
Have you considered running something like fail2ban on the
system? It would temporarily (you set the time) block said IP at the
firewall, which usually make the
Congratulations to both you and Google!
On Tue, Mar 24, 2015 at 4:00 PM, Wietse Venema wrote:
> After 18 years, including the best of my career, I decided that it
> was time to move on. I'll be working on security at Google NY.
>
> Please, there is no reason to say negative things about m
On Wed, Feb 25, 2015 at 7:20 AM, Wietse Venema wrote:
> Sebastian Nielsen:
>> I have a problem with signing-milter (http://www.signing-milter.org) that
>> seem to be that postfix ?sabotage? the
>> signed mail in its post-processing by doing something with the
>> newlines.
>
> You must make your m
On Sun, Feb 15, 2015 at 9:12 AM, John wrote:
> A couple of the servers I support are medical offices, and for patient
> confidentiality reasons they need to send email out encrypted.
> After a lot of discussion they have come to the conclusion that in order to
> avoid accidentally sending confide
On Tue, Jan 20, 2015 at 12:11 PM, li...@rhsoft.net wrote:
>
> Am 20.01.2015 um 17:49 schrieb Rosenbaum, Larry M.:
>>
>> What would be the best method for (temporarily) blocking all mail from a
>> particular (internal) IP? Or alternatively, blocking all mail with a
>> particular “MAIL FROM” address
On Sun, Jun 29, 2014 at 8:20 AM, Wietse Venema wrote:
> Mauricio Tavares:
>> [<-] 220 mail.domain.com Test Mail Server
>> [->] HELO raub.internal.domain.com
>> [<-] 250 mail.domain.com
>> [->] MAIL FROM:
>
> You send HELO. That means you can only send
On Tue, Jun 24, 2014 at 10:58 AM, Wietse Venema wrote:
> Mauricio Tavares:
>> This email is mostly about understanding what is going on, how
>> the process works than whether my install of postfix is working
>> properly or the MUA is lying. In fact, I am using ssmtp to
This email is mostly about understanding what is going on, how
the process works than whether my install of postfix is working
properly or the MUA is lying. In fact, I am using ssmtp to send the
email to postfix because I want to make my test as simple as possible
(avoid "helpful" MUAs adding
On Wed, Apr 16, 2014 at 8:40 AM, Joy wrote:
> Dear Expert,
> I have configured my postfix to lookup against LDAP
> server which hosts multiple domain all working fine but in case any domain
> moves from my mail server to another server like yahoo or gmail by changing
> onl
On Thu, Feb 20, 2014 at 9:31 PM, Feel Zhou wrote:
> Hello, My friend
> This is Tom, I'm sending my greeting from China.
> Today, one of my postfix server can not telnet any other mail server's port
> 25. It's working before 9:00am(bejing time CHina), I have restart the mail
> server and reinstall
On Tue, Feb 11, 2014 at 9:34 AM, c cc wrote:
> Andreas,
>
> Thanks for your quick reply--is there a setting in Postfix that I should
> configure to fix this problem? Thanks!
>
Forget about postfix. First validate you have connection to that
server. i.e. can you reach that port while in ipv6?
On Thu, Jul 18, 2013 at 8:44 AM, Roman Gelfand wrote:
> would you have more info on this, as far as, how to go about researching this?
>
> Thanks again
>
You probably will need to check the qmail server's log to see
WTF is going on. If you stare at the log in the qmail server (not in
the pos
On Sat, Dec 24, 2011 at 6:10 AM, Jerry wrote:
> On Sat, 24 Dec 2011 06:34:37 +0100 (CET)
> Andreas Berton articulated:
>
>> Merry christmas to you all!
>
> Have you ever considered the irony in the fact that we celebrate
> Christ's birthday every year by ignoring the fact that he would have
> cele
On Fri, Dec 23, 2011 at 10:43 PM, . wrote:
>
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> I'm very new at mail server stuff and not too technical in
> experiencebut can follow well written instructions.
>
> The first difficulty I had after installation of Postfix was about the
> Stati
On Sat, Dec 3, 2011 at 10:18 PM, email builder wrote:
>>> > I'm currently backing up my machine at home to a WD "My Passport" USB
>
>>> > drive, doing a monthly full and nightly differential, using a script
>>> > that employs rsync. Each backup set looks like a full backup. Works
>>> > like a ch
Sent from my Blackberry
On Dec 3, 2011 9:59 AM, "Wietse Venema" wrote:
>
> Jim Seymour:
> > On Fri, 2 Dec 2011 21:52:54 -0800 (PST)
> > email builder wrote:
> >
> > [snip]
> > > As know one seems to have any other ideas, looks like it has to be
> > > some rsynch variant using whatever cheap remot
On Tue, Nov 22, 2011 at 9:09 AM, Tolga wrote:
> Hi,
>
> Our mail server is getting A LOT of Chinese spam e-mails. How can I block
> these? In fact, how do I block e-mail with Chinese characters in Subject?
>
> Thanks,
>
spamassassin or something similar would help you out with that;
we use i
On Thu, Sep 29, 2011 at 4:18 PM, Reindl Harald wrote:
>
>
> Am 29.09.2011 22:12, schrieb Ralf Hildebrandt:
>> * Reindl Harald :
>>
None of these hosts supports any kind of transport level security
(e.g. encryption using STARTTLS)
>>>
>>> you should complain to blackberry
>>
>> Thought so
On Wed, Feb 2, 2011 at 5:10 PM, Matt wrote:
> I'm working on replacing an ageing Posfix install with a new server.
>
> On the old and new server we use virtual domains.
>
> On the old server we login with: username.domain.com
> On the new server Postfix is configured to allow login as: usern...@do
On 11/05/2010 03:41 PM, Alejandro Facultad wrote:
Thanks but, is it right if coming from Internet I enter to your mail
server and after that I send a message from your mail account to your
project manager's mail account telling he's an asshole ???
I now SPF is ideal for avoid this behavior, but
On Mon, Jun 21, 2010 at 3:59 PM, motty.cruz wrote:
> Hello all,
> What is the best way to protect against directory attack? Below is my log
> file and postconf -n!
> Thanks in advance!
>
> Jun 21 12:39:06 machine1 postfix/smtpd[72653]: lost connection after RCPT
> from unknown[178.122.29.134]
> Ju
On Wed, Nov 11, 2009 at 12:05 PM, Eero Volotinen wrote:
> Rick Zeman wrote:
>>
>> On Wed, Nov 11, 2009 at 11:20 AM, Eero Volotinen
>> wrote:
>>>
>>> Rick Zeman wrote:
>>>
> http://wiki.dovecot.org/HowTo/PostfixAndDovecotSASL
Whoops...been so long since I set that up that I should ha
Here is another trivial question: I have a postfix box I want
to let a specific user in another domain, say otherdomain.com, to use it
as his smtp. So, he would authenticate against it but would not have an
email account in the machine. And, of course, nobody else but him from
that doma
Brian Evans - Postfix List wrote:
Mauricio Tavares wrote:
I am compiling postfix 2.6.1 in a Solaris 10 box using the
following script:
#!/bin/bash
make tidy
make makefiles CC=gcc \
CCARGS='-DUSE_TLS -DHAS_PCRE -DUSE_SASL_AUTH \
-DDEF_SERVER_SASL_TYPE=\"dovecot\" \
-I/
I am compiling postfix 2.6.1 in a Solaris 10 box using the following
script:
#!/bin/bash
make tidy
make makefiles CC=gcc \
CCARGS='-DUSE_TLS -DHAS_PCRE -DUSE_SASL_AUTH \
-DDEF_SERVER_SASL_TYPE=\"dovecot\" \
-I/usr/sfw/include -I/opt/sfw/include -I/usr/local/include \
-I/usr/local/Berke
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