smuggling for the `\r\n.\n` case.
Sorry, that was a bad copypaste, I meant '\r\n.\r'.
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If I remember correctly, on the wire there was \r\n\r\n.\r\r\n
I will assemble a pcap and some logs when I'm back home.
> In other words, I need to see proff in the form of a PCAP file and
> NON-VERBOSE logging, or it did not happen.
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People are welcome to test tools against postfix-3.9-20240106.
I could test against a 3.7.9 codebase if you posted a patch for it.
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5)
score SPAM_DOMAIN_OUTLOO9 15.0
describeSPAM_DOMAIN_OUTLOO9 Outlook spam with missing headers,
missing To (outloo)
On Sun, 7 Jan 2024 10:17:56 -0500 John Hill via Postfix-users
wrote:
> First I am really amazed at the amount of support, that's not true
> everywhere. I al
ov.in
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ect - all was rejected (Rejected at
spf level)
[1] https://github.com/The-Login/SMTP-Smuggling-Tools.git
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W dniu 8.01.2024 o 13:35, Damian via Postfix-users pisze:
I create test VPS (outside my infrastructure) and install all for
python3 for testing
root@hanz:~# python3 smtp_smuggling_scanner.py --sender-domain
gmail.com piot...@mydomain.ltd
Don't use a sender-domain you don't have co
s "fake" end-of-data sequence!
Are those really standalone emails with subject "SMUGGLED EMAIL ..."? If
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Hi
Yest this is e-mails body from test - only when sender domain have SPF
set ~all or SPF not exist
W dniu 8.01.2024 o 15:08, Damian via Postfix-users pisze:
SMUGGLING WORKS with '\r\n\x00.\r\n' as "fake" end-of-data sequence!
SMUGGLING WORKS with '\r.\r\n'
- Message from Viktor Dukhovni via Postfix-users
-
Date: Mon, 8 Jan 2024 12:40:49 -0500
From: Viktor Dukhovni via Postfix-users
Reply-To: postfix-users@postfix.org, Viktor Dukhovni
Subject: [pfx] Re: recipient_bcc_maps clarification.
To: postfix-users
[115.236.121.165]
Would it be possible to log at least the queue-id as well? Also sender
and/or recipient would be nice ;-) Or is it for security that no more
information is logged?
Have a good one
tobi
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have such a map for outgoing e-mails
But I need a this "wildcard" for my MX that only works for incoming mail
something like .*@.* -> *.@.*
I just don't want stupid bots to try to play...
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Hi Wietse Have you thought about postfix repo for Debian, just like
dovecot has for his relase ?
I'm asking by the way
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;transport" map.
If you need more info, please ask. Thanks
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OpenPGP_0x8FBF94AC1E006074.asc
Description: OpenPGP public key
OpenPGP_signature.asc
Description: OpenPGP digital signature
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Il 14/01/2024 14:07, Wietse Venema via Postfix-users ha scritto:
If there are any schleuder users on this list, maybe someone knows
what you are talking about.
For the rest of the readership, concrete informnation (settings,
not beliefs) is needed.
https://paste.woodpeckersnest.space
Il 14/01/2024 15:52, Wietse Venema via Postfix-users ha scritto:
To receive receive list mail fordecentralize-send...@wood...nest.eu
you need to list wood...nest.eu in mydestination.
But I believe I read in several places in the docs to NOT add a virtual
domain to mydestination.. Didn
Il 14/01/2024 16:21, Wietse Venema via Postfix-users ha scritto:
Actually, this happens because your virtual alias
@woodpeckersnest.eu@woodpeckersnest.space
rewritesdecentralize-send...@wood...nest.eu to
decentralize-send...@wood...nest.space
If you cannot change that, then your
Il 14/01/2024 16:21, Wietse Venema via Postfix-users ha scritto:
Actually, this happens because your virtual alias
@woodpeckersnest.eu@woodpeckersnest.space
rewrites decentralize-send...@wood...nest.eu to
decentralize-send...@wood...nest.space.
If you cannot change that, then
Il 14/01/2024 15:56, roughnecks via Postfix-users ha scritto:
Il 14/01/2024 15:52, Wietse Venema via Postfix-users ha scritto:
To receive receive list mail fordecentralize-send...@wood...nest.eu
you need to list wood...nest.eu in mydestination.
But I believe I read in several places in the
Il 14/01/2024 18:57, Wietse Venema via Postfix-users ha scritto:
Does the other .eu mailinglist sill work?
If you mean the .space one, it does, but I had to also remove the
canonical map :)
I had a schleuder .space list, (still) working
Now I have a schleuder .eu list, also working
Plus
On 12/01/24 04:08, Wietse Venema via Postfix-users wrote:
Viktor Dukhovni via Postfix-users:
On Thu, Jan 11, 2024 at 03:53:35PM +0100, natan via Postfix-users wrote:
Hi Wietse Have you thought about postfix repo for Debian, just like dovecot
has for his relase ?
What is a "Postfix rep
dap:/etc/postfix/ldap/virtual-mailbox-maps.cf
virtual_transport = lmtp:unix:private/dovecot-lmtp
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hey postfix-users,I am trying to replicate the smtp smuggling for my postfix servers to verify the fix. But I am not able to recreate it. Incoming side I am always receiving single mail. I am trying to send a mail with the incorrect END-OF-DATA with a script. Can someone help with the same?Thanks
s.pcre:
/myclient\.com/ permit
Any ideas greatly appreciated.
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On 16/01/24 17:26, Scott Kitterman via Postfix-users wrote:
As many are aware Ghettoforge builds these for EL. To me the simplest way for
Debian and other distros is for a community member to take up the mantle and
build Postfix in a similar way. It's not that difficult to do and it put
On 25/01/24 04:38, Bill Gee via Postfix-users wrote:
Oops! I just realized that I sent this instead of saving it. Dang!
I've re-organized the quoted section to put your questions in their
intended order.
The time is finally coming when I have to do something with my Postfix
serve
} ${recipient}
-- end of postfinger output --
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Best,
Mark.
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tconf mail_version
mail_version = 3.5.8
# postconf -m
btree cidr environ fail hash inline internal ldap memcache mysql nis pcre
pipemap proxy randmap regexp socketmap static tcp texthash unionmap unix
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ell?
I'm trying to be as restrictive as possible, against haux&pseudo
hostnames/helo attempts, spammers and attackers.
Many thanks,
Much regards.
Mark.
2 Şubat 2024 Cuma tarihinde Viktor Dukhovni via Postfix-users <
postfix-users@postfix.org> yazdı:
> On Fri, Feb 02, 2024 at 08:
rules are happening in main.cf, which is listed here;
https://pastebin.mozilla.org/i5tMtPAk
I've learned a lot from your replies, much grateful!
Thank you,
Mark.
Viktor Dukhovni via Postfix-users , 4 Şub 2024
Paz, 19:14 tarihinde şunu yazdı:
> On Sun, Feb 04, 2024 at 01:22:45PM +020
uld you explain further please
where I made a mistake?
Regards.
Matus UHLAR - fantomas via Postfix-users , 5 Şub
2024 Pzt, 15:15 tarihinde şunu yazdı:
> On 04.02.24 22:06, Mark via Postfix-users wrote:
> >->"Best practice is to require submission users sending outbound mail do
> s
tus UHLAR - fantomas via Postfix-users , 5 Şub
2024 Pzt, 16:33 tarihinde şunu yazdı:
> On 05.02.24 15:46, Mark wrote:
> >Thanks for the idea below. I'm going to try wrapping them in $mua in
> main.cf
> >.
> >
> >However, you said;
> >
> >"Looking
Thanks for your advice.
Am 25.01.2024 22:56 schrieb Viktor Dukhovni via Postfix-users:
On Thu, Jan 25, 2024 at 04:48:39PM -0500, Bill Cole via Postfix-users
wrote:
> - Are you expected exactly one recipient per-invocation of the
> spamassassin filter? I'm not sure how sp
swer/81126?visit_id=638429520681370280-1110640002&rd=1#zippy=%2Crequirements-for-all-senders
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On 8/02/24 14:23, Alex via Postfix-users wrote:
I'm hoping I could ask for some advice. We have a pretty
large percentage of users who forward mail through our systems to
personal Gmail accounts. Sometimes it is mail from bulk senders like
mailgun and lanyon/cvent.
Before answering
On 8/02/24 21:38, Kees van Vloten via Postfix-users wrote:
A little addition that also helps a bit: move the content of the From:
header to the Reply-To: header and replace From: with the local account
that is forwarding the message. All mail then originates from your
domain and a reply to a
spamd
child
But it looks like I can't make the directory persist to /root/.spamassassin.
Where can I change the path?
I can't find a spamd.conf file
Thank you for your help
Christian
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And I don't know what to pay attention to the email
itself has the correct structure
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W dniu 9.02.2024 o 15:13, Juri Haberland via Postfix-users pisze:
On 09.02.24 14:58, natan via Postfix-users wrote:
Hi
I have setup postfix+SPF+DKIM+DMARK and im confused
Sometimes I get in logs fail like:
Feb 2 09:02:46 mail134 opendmarc[29379]: AE3D53B0062: allegromail.pl fail
Feb 2 09:02
On 10/02/24 02:50, Matus UHLAR - fantomas via Postfix-users wrote:
On 08.02.24 13:05, Doug Hardie via Postfix-users wrote:
I implemented postscreen quite a while ago. I don't see where or how
it introduces a delay to force the originating MTA to queue and try
later.
It does not intr
On 11/02/24 13:51, Doug Hardie via Postfix-users wrote:
If I am understanding correctly, that means that if I set smtp_skip_5xx_greeting to
"no", then postfix would stop after the first 5xx and terminate the email.
That seems like it might open up some issues where a provider wit
ervers to see if the client has
attempted a connection to one of the other MX servers. I'm not sure I ever
managed to set it up successfully, however.
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On 12/02/24 11:47, Alex via Postfix-users wrote:
My concern would be with multiple MX records for the same domain - is it
possible it would come back to try again with another MX and be delayed
yet again?
Unless you're referring to your own MX records these are not relevant.
That said,
Hi,
On Mon, Feb 12, 2024 at 5:39 AM Jaroslaw Rafa via Postfix-users <
postfix-users@postfix.org> wrote:
> Dnia 11.02.2024 o godz. 17:47:05 Alex via Postfix-users pisze:
> > My concern would be with multiple MX records for the same domain - is it
> > possible it would come b
lt of going a second time through
cleanup daemon and resolving the alias table.
One of the solution might be to set
smtpd
-o content_filter=spamassassin
-o receive_override_options=no_address_mappings
But then we're back at
https://www.mail-archive.com/postfix-users@postfix.org
mitri
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On 19/02/24 14:00, Wietse Venema via Postfix-users wrote:
Viktor Dukhovni via Postfix-users:
On Tue, Feb 13, 2024 at 12:23:32PM -0500, Wietse Venema via Postfix-users wrote:
Over 25 years, Postfix has accumulated some features that
are essentially obsolete.
A quick status update.
First
5GB, 20TB)
ovhcloud
($4.20 2GB, 1CPU, 20GB, 100Mbps unmetered)
($5.50 2GB, 2CPU, 40GB, 500Mbps unmetered)
brownrice
($5.95 3GB, 1CPU, 10GB, unlimited)
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On 21/02/24 12:40, Wietse Venema via Postfix-users wrote:
Peter via Postfix-users:
A quick status update.
First, several features have been logging warnings that they would
be removed for 10 years or more, so we could delete them in good
conscience (perhaps keeping the warning with the
bmission/smtpd[150038]: disconnect
from ehlo=2 starttls=1 auth=0/1 commands=3/4
Any hints, would be great, if this might be a firmware bug from NVR, our could
maybe be solved by changing my SASL etc. config.
Thanks in advance,
Michael
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Am 22.02.24 um 15:58 schrieb Wietse Venema via Postfix-users:
michaelof--- via Postfix-users:
2024-02-22T13:56:15.715392+01:00 vserver postfix/submission/smtpd[150038]: connect
from
2024-02-22T13:56:15.715607+01:00 vserver postfix/submission/smtpd[150038]: improper
command pipelining after
Am 22.02.24 um 18:29 schrieb Matus UHLAR - fantomas via Postfix-users:
Am 22.02.24 um 15:58 schrieb Wietse Venema via Postfix-users:
michaelof--- via Postfix-users:
2024-02-22T13:56:15.715392+01:00 vserver postfix/submission/smtpd[150038]: connect
from
2024-02-22T13:56:15.715607+01:00
check_sender_access hash:/etc/postfix/sender_checks,
check_client_access hash:/etc/postfix/rbl_override,
reject_rbl_client bl.spamcop.net,
check_policy_service unix:private/policy
*
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2024 6:03:54 AM Matus UHLAR - fantomas via Postfix-users
:
> On 24.02.24 00:49, lists--- via Postfix-users wrote:
>> I have set up rbl_override for the sender's domain. However it
>> occasionally gets blocked by spamcop. The user owns a domain but relays
>> the mail from o
see how much spam spamcop stops that isn't
coming from Microsoft. Maybe I could whitelist the Microsoft IP space in
rbl_override.
Feb 24, 2024 6:15:10 AM Benny Pedersen via Postfix-users
:
> lists--- via Postfix-users skrev den 2024-02-24 09:49:
>
>> check_client_access
That should work. Thanks
https://www.postfix.org/access.5.html
Feb 24, 2024 8:05:00 AM Matus UHLAR - fantomas via Postfix-users
:
>>> On 24.02.24 00:49, lists--- via Postfix-users wrote:
>>>> I have set up rbl_override for the sender's domain.
> [...]
>
that -
but I am looking for a solution
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27 03:55:55 MYDOMAIN postfix/smtpd[31397]: disconnect from
mail-dm6nam10on2125.outbound.protection.outlook.com[40.107.93.125]
ehlo=2 starttls=1 mail=1 rcpt=0/1 quit=1 commands=5/6 Feb 27 03:57:47
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2024 1:09:02 PM Wietse Venema :
> Your mistake: you are trying to match a SENDER ADDRESS with
> check_CLIENT_access.
>
> Wietse
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rejected in actual use even though
postmap -q testing with a specific user at the domain name doesn't
return anything?
This test has similar results with OK instead of REJECT.
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To unsubs
lived move IP)
All new connections work ok, but the old ones get an error connecting to
the database.
W dniu 27.02.2024 o 17:44, Wietse Venema via Postfix-users pisze:
natan via Postfix-users:
If i set smtpd_proxy_timeout=60s I "terminating" (timeout) all old
connections who get
&
W dniu 28.02.2024 o 16:14, Wietse Venema via Postfix-users pisze:
natan via Postfix-users:
for"us...@domain.ltd"
Feb 27 16:02:28 smtp1v postfix/cleanup[23476]: warning:
proxy:mysql:/etc/postfix/mysql_sender_bcc_maps_user.cf-new lookup error
for"us...@domain.ltd"
Feb 27 16:
irehose of spam.
Up to you of course. I have a few posts on the list trying to whitelist just
one sender.
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Matus UHLAR - fantomas via Postfix-users wrote:
>
> Mozilla supports multiple identities on the same mailbox, even using
> different sending server/mailbox.
> So, with mozilla you can have the same result with both alias and mailbox.
> However, this may not apply to other
ient_checks
-rw-r--r-- 1 appuser appuser 2305 Mar 6 18:37 recipient_checks.cdb
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On Wed, Mar 06, 2024 at 07:30:01PM -0500, Christophe Kalt via Postfix-users
wrote:
> Hi,
>
> The two options I've seen for implementing SRS are milter and
> [sender_]canonical_maps but it seems to me that neither are a good fit when
> rewriting the envelope From as they ha
good suggestions will be appreciated.
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fix.pem
smtpd_tls_key_file = /etc/pki/tls/private/postfix.key
smtpd_tls_security_level = may
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550
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/usr/lib64/postfix
>
> smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt
>
> smtp_tls_CApath = /etc/pki/tls/certs
>
> smtp_tls_security_level = may
>
> smtpd_tls_cert_file = /etc/pki/tls/certs/postfix.pem
>
> smtpd_tls_key_file = /etc/pki/tls/private/postfix.key
>
> smtpd_tls_security_level = may
>
> transport_maps = hash:/etc/postfix/transport
>
> unknown_local_recipient_reject_code = 550
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
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rrecting it, he sends me to block
such e-mails using Postfix.
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better to improve the
application than to play around with postfix because you can cause a big
problem
I don't want to kick with the horse...
W dniu 19.03.2024 o 11:43, Erwan David via Postfix-users pisze:
Le 19/03/2024 à 11:39, natan via Postfix-users a écrit :
Hi
I have one question regard
--8<8<
Of course, I also configured the smtp_sasl_password_maps to login to gmail.
I believe my transport and sasl configurations are well since the
problem is postfix thinks smtp.gmail.com:465 uses self-signed certificate.
Do you have idea to solve this problem ?
_
On 2024/3/20 22:25, Cowbay via Postfix-users wrote:
Below is openssl example:
8<8<8<
$ openssl s_client -4 -connect smtp.gmail.com:465 -CAfile
/etc/ssl/certs/ca-certificates.crt
CONNECTED(0003)
depth=2 C = US, O = Google Trust Services LLC, CN = GT
On 2024/3/23 04:57, Wietse Venema via Postfix-users wrote:
Unleess you can hand over the certificate that Postfix complained
about, you have not proven that Postfix was in error.
You are right, I can't guarantee if the certificate openssl dumped was
the one Postfix encountered.
Specifi
On 2024/3/23 20:04, Wietse Venema via Postfix-users wrote:
Cowbay via Postfix-users:
So, I will collect necessary information next time I encounter this
issue as what Viktor suggested.
Please note that Postfix does not automatically use the "system"
root CA store that openssl s_
On 2024/3/24 00:49, Viktor Dukhovni via Postfix-users wrote:
and also "posttls-finger" as in the example I posted.
You might not get to observe the problem for quite some time (if ever
again).
I'm quite seldom sending mail by gmail via my postfix server.
If the "pos
On 2024/3/25 01:12, Viktor Dukhovni via Postfix-users wrote:
If the "posttls-finger" has the identical behavior as postfix, then I
could write a simple cronjob script to "finger" the
smtp.gmail.com:465.
Not necessarily 100% identical, but quite close.
It seems not per
On 2024/3/25 10:55, Viktor Dukhovni via Postfix-users wrote:
I checked posttls-finger on my another container which is Ubuntu
22.04.4, posttls-finger still doesn't support ipv6, weird.
It isn't posttls-finger that does not support "ipv6", but rather your
network stack
On 2024/3/25 12:05, Viktor Dukhovni via Postfix-users wrote:
On Mon, Mar 25, 2024 at 12:00:12PM +0800, Cowbay via Postfix-users wrote:
On 2024/3/25 10:55, Viktor Dukhovni via Postfix-users wrote:
I checked posttls-finger on my another container which is Ubuntu
22.04.4, posttls-finger still
On 2024/3/28 00:25, Samuel Goodies via Postfix-users wrote:
Hi guys. I'm inheriting a job that has an email server hosting several domains,
and I'm wanting to move them behind our firewall and route mail from the main
mail server to an offsite postfix server that will in turn send t
s
auth from submission?
I also thought of using the recipient_delimiter, so sending something like
user1+a...@mydomain.com might work, but it's not what was asked for.
Maybe this is a dovecot config option I'm missing?
Thanks for any ideas on what I'm missing here.
________
suitable
> entry to the sender_login_maps file. Run postmap on the file.
>
> That entry probably should look like:
>
> @example.com alex
>
Thank you - I initially didn't think the format supported that, but also
just realized it.
Thanks,
Alex
__
It is kind of off topic, but to my opinion there is no FP-less RBL available.
Consider moving to scoring system to not rely on listing at only one blocklist.
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beacuse I get many many spam from *.bc.googleusercontent.com
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You should use check_reverse_client_hostname_access
I have the following pcre map entry:
/\.googleusercontent\.com$/ REJECT policy forbids MTA with generic PTRs
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Στις 11/4/24 10:59, ο/η Matus UHLAR - fantomas via Postfix-users έγραψε:
It still works, but you may need supplementary software as amavis,
sagator, spamass-milter or mimedefang because SpamAssassin only focuses
on classification, not about delivery.
iirc, you also need a compiler
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Στις 13/4/24 13:51, ο/η Paul van der Vlis via Postfix-users έγραψε:
Unfortunately, I have quite a few customers who want to receive email
from their own domain at a different email address, such as a Gmail or
Hotmail address. I forward this in /etc/postfix/virtual.
a totally different
On Mon, Apr 22, 2024 at 03:50:34PM GMT, Viktor Dukhovni via Postfix-users wrote:
> and this (specifically, !UNAVAIL=return) turns soft DNS failures into
> hard errors.
>
> The solution, on any production mail server, is to remove (with
> prejudice)
>
> resolve [!UNAVAIL=
On 15/04/24 10:14, Benny Pedersen via Postfix-users wrote:
Authentication-Results list.sys4.de; dkim=pass
header.d=porcupine.org; arc=none (Message is not ARC signed); dmarc=pass
(Used From Domain Record) header.from=porcupine.org policy.dmarc=none
What does this have to to with Postfix
27;re going to run down the postfix list for your
own failure at least have the decency to do it *on* the postfix list.
Peter
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On 25/04/24 19:42, Benny Pedersen via Postfix-users wrote:
Peter via Postfix-users skrev den 2024-04-25 09:19:
On 15/04/24 10:14, Benny Pedersen via Postfix-users wrote:
Authentication-Results list.sys4.de; dkim=pass
header.d=porcupine.org; arc=none (Message is not ARC signed);
dmarc=pass
transport (to be
defined in master.cf) and the normal MX of recipient domain?
Have a good one
tobi
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we want it :-)
Have a nice weekend
tobi
On Fri, 2024-04-26 at 01:46 -0400, Viktor Dukhovni via Postfix-users
wrote:
> On Fri, Apr 26, 2024 at 07:21:24AM +0200, Tobi via Postfix-users
> wrote:
>
> > Or would it be possible to use a sender_dependent_relayhost_maps
> > an
= ipv6, inet_interfaces = a:b:c::d, mynetworks,
smtpd__restrictions, etc).
Am I on the right track with the previous paragraph, or is/are there
better way(s) to accomplish this?
Sincerely,
Peter
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ble
identifying which milter(?) to use for this.
https://blog.mystrika.com/arc/
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x via Postfix-users" wrote:
Hi,
I'm using postfix-3.7.9 on fedora38 and would like to implement ARC to assist
with authenticating emails being forwarded by users to Gmail and others. The
research I've done points to OpenARC as a dead project.
This looks like a great guide to
-o smtpd_hard_error_limit=1000
-o smtpd_client_connection_count_limit=0
-o smtpd_client_connection_rate_limit=0
-o
receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters,no_address_mappings
-o local_header_rewrite_clients=
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