http://stats.dnsbl.com/
As victor said, ZEN is usually enough for most people, but it's always
good to know why you're not using the rest.
On Thu, Feb 12, 2009 at 2:02 PM, Linux Addict wrote:
> Please see below my smtpd_recipient_restrictions. On my rbl client list I
> have multiple entries, but
Including every solicited bulk email. They usually create unique
bounce addresses to track dead target mailboxes etc.
On Wed, Feb 11, 2009 at 9:30 AM, Michael Katz
wrote:
> Ilo Lorusso wrote:
>> Hi
>>
>>
>> is their a way I can reject messages when its from address does not
>> match the envelope
smtpd_delay_reject = no ?
On Wed, Feb 18, 2009 at 3:09 PM, Alexey V Paramonov
wrote:
> Hi,
> I'm looking for a good solution to make my postfix server operate faster.
> My setup is Postfix + Policyd-weight + fail2ban, but nothing helps under
> heavy load, and the problem is not with the server pe
On Wed, Feb 18, 2009 at 3:59 AM, Rocco Scappatura
wrote:
> My aim, anyway, is to apply a such policy for outgoing messages
> (including internal-to-internal messages). So I have to define a group
> which contains the IPs enabled for relay through my mail server.
smtpd_end_of_data_restrictions =
It's easier to do with a src-nat within network gear. But let me tell
you that this is referred to as "snowshoeing" as it expands your IP
footprint, and is seen in the deliverability world as a slimy thing to
do.
People do it to mitigate the effects of their IP addresses being
blacklisted. But t
On Thu, Feb 19, 2009 at 9:02 AM, Rocco Scappatura
wrote:
> Thanks Peter,
>
>> > My aim, anyway, is to apply a such policy for outgoing messages
>> > (including internal-to-internal messages). So I have to define a
>> group
>> > which contains the IPs enabled for relay through my mail server.
>>
>>
I'm certain that you should rephrase that to:
Best way to NOT setup an open relay
Feel free to test your config against:
http://www.abuse.net/relay.html
To ensure that your host isn't an open-relay to the Internet (Say hi
to "hinet" if it is)
On Thu, Feb 19, 2009 at 2:42 PM, Rich wrote:
0/0 is the entire internet.
Take the approach of least privileges. The idea that laptop users VPN
in if they want to be given a free ride (no auth) etc works, since you
can place your VPN subnet into mynetworks.
Perhaps your initial posting was too ambiguous.
On Thu, Feb 19, 2009 at 3:00 PM, Ri
On Thu, Feb 19, 2009 at 3:15 PM, Bokhan Artem wrote:
> Peter Blair пишет:
>>
>> It's easier to do with a src-nat within network gear.
>
> I understand, I just wanted to know if there is an intelligence way to bind
> every ip address its own helo.
Well, you could pl
True enough-- but that won't help your HELO matching up with the
reverse of the IP that its bound to.
2009/2/19 Bokhan Artem :
> Peter Blair пишет:
>>
>> Well, you could place a slim smtp proxy between postfix and the
>> Internet.
>
> It's easier to write a
2009/2/19 Bokhan Artem :
>>> smtp1 unix - - n - 100 smtp -o
>>> smtp_helo_name=smtpout1.do -o smtp_bind_address=1.1.1.1
>>> smtp2 unix - - n - 100 smtp -o
>>> smtp_helo_name=smtpout2.do -o smtp_bind_address=2.2.2.2
>>>
>>>
>
>
On Mon, Feb 23, 2009 at 12:00 PM, Chris Dos wrote:
> I've been tasked to figure out a way for our three postfix relay servers to
> intercept every hard bounced back
> e-mail and process it for our web application.
>
> We have about nine servers relaying mail through our three postfix servers.
>
sends it to the address in the envelope.
On Mon, Feb 23, 2009 at 1:23 PM, Chris Dos wrote:
> Peter Blair wrote:
>> On Mon, Feb 23, 2009 at 12:00 PM, Chris Dos wrote:
>>> I've been tasked to figure out a way for our three postfix relay servers to
>>> intercept ev
If the exchange server is doing anti-spam analysis, then can't you
setup the exchange server to be a before queue content filter? This
will mean that your postfix server will still do all of the RBL and
recipient checks, but the 5XX series block sent by postfix will be
relayed via postfix to the u
On Thu, Mar 19, 2009 at 3:28 PM, David A. Gershman
wrote:
> from an external source. I'm trying to see if there is a setting in
> master.cf (or other .cf file) which will reject any email from an
> external IP (other than my own) *and* is claiming to be from a local
> user account.
You'll block
On Thu, Mar 26, 2009 at 12:55 PM, LuKreme wrote:
> Obviously I can't disable the account as it is required, but is there
> something that I can do to stop the connections for messages like this:
>
> Return-Path:
> X-Original-To: postmas...@covisp.net
> Delivered-To: postmas...@covisp.net
> Recei
On Sat, Apr 4, 2009 at 3:27 AM, Oguz Yilmaz wrote:
> On my postfix mail server I have RBL definitions at
> smtpd_client_restrictions phase. At the moment 2 of 4 rbl's waiting until
> tcp timeout without an answer when I try with nslookup.
It sounds like your dns recursor is having problems. Ens
On Mon, Apr 13, 2009 at 3:59 PM, Tashfeen Ekram wrote:
> I have installed Postfix on Ubuntu to use to only send emails for my rails
> application. My rails application is not able to connect to it. Could this
> be because sendmail is listeneing at port 20?
> also, what configuration would suit me
On Tue, Oct 20, 2009 at 4:40 AM, Martin Schiøtz wrote:
>>> Can I do any outgoing spam checks with postfix or I'm forced to
>>> install lots of Amavis, spamassassin, etc. software to do that job.
>>>
>>
>> I'm sorry to tell you that blocking outbound spam is at least harder
>> than blocking inbound
On Fri, Nov 27, 2009 at 12:14 PM, Sharma, Ashish wrote:
> I have a Postfix mail server that needs to be set for two content filters as
> I have two content filters.
>
> One from AmaVis and another a custom content filter.
Can you not have amavis feed to your second content filter, which will
in t
On Fri, Nov 27, 2009 at 12:58 PM, Sharma, Ashish wrote:
> Peter,
>
> I don't know how to do it, please post some sample for doing what you are
> suggesting.
Read an Amavis document, and instead of pointing it to the postfix
reinjection port, send it to your other content filter.
Well, I see no reason to have a MTA running on a public IP. As stated
above in the thread, as long as your server is HELO'ing out as the
name associated with the PTR record for its SRC-NAT, then you should
be fine.
On Fri, Nov 27, 2009 at 3:42 PM, Roman Gelfand wrote:
> On Fri, Nov 27, 2009 at 1
On Mon, Aug 8, 2011 at 3:48 PM, Stephen Atkins wrote:
> My main goal is to figure out what I should have in each section of
> main.cf (smptd/client restrictions to help stop spam and not to be a open
> relay or back scatter host.
You won't be successful in stopping spam with any kind of "set it a
On Tue, Aug 9, 2011 at 10:38 AM, Ralf Hildebrandt
wrote:
> * Amira Othman :
>> Hi all
>>
>> I want to send mails to all users I have in my database and I am using
>> postfix-2.3.3-2.3.el5_6. I am afraid that ISPs consider me spammer and add
>> me to black list.Any one can suggest to me where to st
On Fri, Aug 5, 2011 at 4:13 AM, Bjron Mork wrote:
> I do have the same concerns, is there any way to implement users bases
> sending policies through postfix …
Not really. Postfix accepts messages into one of its queues, and will
pick those messages up (depending on its retry formula) and attemp
The RFC stipulates that only an A record is required. Mind you, your
/etc/hosts file isn't equivalent to an A record. Configure an
override in your transport file for testing.
Oh, and try not to send HTML mails to mailing lists.
On Fri, Aug 12, 2011 at 9:46 AM, Amira Othman wrote:
>
> Hi all,
On Mon, Aug 15, 2011 at 10:30 AM, Jerico2day wrote:
> I'd like to have postfix dynamically change "my.domain.com" only on
> Message-Id header to some arbitrary domain that would be
> public-facing for all outgoing mail and change it back for incoming
> mail.
>
> Unfortunately, I'm not quite sure
On Tue, Aug 16, 2011 at 2:35 AM, Ralf Hildebrandt
wrote:
> * Peter Blair :
>> /Message-Id:\s+<(.*?)@my.domain.com>/ REPLACE Message-Id:
>> <$1...@my.domain.net>
>
> Warning: this might also alter Resent-Message-Id: into Message-Id:!!!
-1s/might/will/
Cheers! :)
On Fri, Aug 19, 2011 at 11:33 AM, Ram wrote:
>
>
> On 08/19/2011 07:50 PM, Reindl Harald wrote:
>>
>> Am 19.08.2011 16:05, schrieb Ram:
>>>
>>> I dont want to make smtpd connections in the app because that slows down
>>> the app significantly
>>> and also this is a serialized process.
>>> So sendi
On Tue, Aug 23, 2011 at 8:04 PM, Homer Parker wrote:
> On Tue, 2011-08-23 at 21:33 +0200, Patrick Ben Koetter wrote:
>> I disabled greylisting since I started using postscreen and the spam
>> ratio did
>> not increase, but the immediacy at which mails from new senders arrive
>> did.
>>
>> Anyone w
On Tue, Aug 23, 2011 at 11:59 AM, Thomas Harold wrote:
> On 8/21/2011 10:03 AM, Roger Goh wrote:
>>
>> There's often problem with our postfix mail server (that runs Cyrus
>> / Cyrus-imapd) :
>>
>> I have scripts (using mutt) to send hourly mails out (& from
>> another postfix server, I can send m
On Tue, Sep 6, 2011 at 2:59 PM, Matthias Andree wrote:
> The problem is this:
>
> - I cannot connect to the remote SMTP relayhost via plain TCP, it's
> firewalled on all ports.
>
> - The relayhost does not offer submission STARTTLS or SSL-wrapped legacy
> ports.
>
> - I *can* (and am permitted to)
On Wed, Sep 7, 2011 at 12:36 PM, Steve Jenkins wrote:
> On Wed, Sep 7, 2011 at 8:57 AM, Wietse Venema wrote:
>> This means they broke it (assuming you aren't doing special
>> processing for Mail.RU etc. destinations).
>
> Agreed. I generally test by sending a message to my GMail account. If
> it
On Mon, Sep 12, 2011 at 9:37 AM, Jon Harris wrote:
> Hi List
>
> I don't know if this is possible
It's not. Search the list archives, and there are plenty of people
wanting an API for dropping mail straight into the postfix queue.
> I thought if I could generate a postfix friendly file, I c
On Mon, Sep 12, 2011 at 12:38 PM, Clarence Brown wrote:
> On rare occasions I have had to manually mess around with the mail files, ie
> using an editor to remove a corrupt message messing up pop3. There is one
> file per user mailbox.
[ ya, no longer on topic for postfix... ]
Just be sure that
On Tue, Sep 20, 2011 at 9:16 AM, Stan Hoeppner wrote:
> On 9/19/2011 5:38 PM, john wrote:
>>
>> I think this is off topic.
>>
>> I am running Ubuntu 11.04 as a SOHO server with
>> postfix/dovecot/Amavis-new/Spamassassin/Clamav setup as my email service.
>>
>> Does anybody know of a program... that
On Fri, Sep 30, 2011 at 6:44 AM, Amira Othman wrote:
> Hi all,
>
>
>
> I want to configure automatic message but different one for different user.
> As I am not using MySQL in my postfix configuration and installation I
> didn’t use any other plug-in that may use MySQl too. I am using shell scrip
On Tue, Oct 4, 2011 at 2:55 AM, Dhanraj Wadhe wrote:
> We are public email provider with postfix at backend. We are facing issue
> with getting black listed again and again.
>
> Currently we have setup reverse lookup, DKIIM and SPF to avoid getting
> listed into rbl's and dnsbl.
Great. Once your
On Thu, Nov 3, 2011 at 4:03 PM, Daniel L. Miller wrote:
> We're now using a hosted fax service and receive our faxes via email to a
> dedicated address. Is there a method via Postfix I can have these printed
> when received? Or do I handle this via mda scripting (at the moment,
> Dovecot with Si
On Mon, Dec 19, 2011 at 11:22 AM, Claudio Prono wrote:
> I have thinked also to this, so i have deleted the .vacation.db, re-do
> vacation -I [user] then do
>
> cat 1324286018.V811I1ea270M489235.mail | strace /usr/bin/vacation -t1
> testmedia
>
> But no way, no results at all
If you're reall
On Thu, Jan 12, 2012 at 12:10 AM, Murray S. Kucherawy
wrote:
>> -Original Message-
>> From: owner-postfix-us...@postfix.org
>> [mailto:owner-postfix-us...@postfix.org] On Behalf Of Wietse Venema
>> Sent: Wednesday, January 11, 2012 5:46 PM
>> To: Postfix users
>> Subject: Re: Including s
On Fri, Feb 17, 2012 at 3:54 PM, Reindl Harald wrote:
> how do other people act with such braindead sh**t?
Look into greylisting it. You'll find that greylisting could very
well deal with most of the bots that things like zen.spamhaus.org
would normally deal with. And strictly speaking, you're
2012/3/5 Stanisław Findeisen :
> My bad suspicion is that they are in the process of installing some
> (more or less crappy) mail intercepting facility (i.e. to spy on users)
> and that this is probably the government who ordered that. This is
> Europe (Poland) but do you think such things are unc
At 17 October, 2020 Demi M. Obenour wrote:
> > Postfix is not an HTTP server handling tens to hundreds of thousands of
> > requests
> > per second, and does not benefit from the optimisations needed for those
> > kinds
> > of workloads. Premature optimisations that sacrifice robustness and
>
At 26 October, 2020 Ron Wheeler wrote:
> If you are very old, you will remember when networking was young and e-mail
> was sent over dial-up connections that connected only once or twice a day.
> The email system has to deal with the historical world where connections
> where not "always on" so a
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