On 6/8/25 16:19, Wietse Venema via Postfix-users wrote:
Phil Stracchino:
I did. But that wasn't the question. The question was about what is
correct-*now* smtputf8 directive usage. Having now found it in the man
pages, I'm *inferring* that 'smtputf8 = yes' should be r
On 6/8/25 13:57, Wietse Venema wrote:
Phil Stracchino via Postfix-users:
Just checking:
I just updated from Postfix 3.9.1 to 3.10.2 and found (a) that the
smtputf8 directive now generates a warning, unexpected attribute
smtputf8 from local socket (expecting: sendopts), and (b) that it'
On 6/8/25 13:57, Wietse Venema wrote:
Phil Stracchino via Postfix-users:
Just checking:
I just updated from Postfix 3.9.1 to 3.10.2 and found (a) that the
smtputf8 directive now generates a warning, unexpected attribute
smtputf8 from local socket (expecting: sendopts), and (b) that it'
missed or perhaps have forgotten some discussion
here. Has the usage of the smtputf8 directive changed, or is it now
deprecated/removed?
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On 5/24/25 14:43, Jim Seymour via Postfix-users wrote:
On Sat, 24 May 2025 14:37:52 -0400
Phil Stracchino via Postfix-users wrote:
On 5/24/25 13:38, Jim Seymour via Postfix-users wrote:
This one is a biggie. It encompasses eleven years of bug fixes and
enhancement requests I never got around
, just informing)
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f, opendkim, AND opendmarc with rspamd. It
does all of those jobs, does them *better*, and is actively maintained.
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that serves the same purpose.
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On 4/9/25 11:34, Erwan David via Postfix-users wrote:
On Wed, Apr 09, 2025 at 05:27:38PM CEST, Phil Stracchino via Postfix-users
said:
I have a small-business service from a major US internet carrier. They
offer no IP6 service. They have no *plans* to offer IP6 service. They have
no plans
et carrier. They
offer no IP6 service. They have no *plans* to offer IP6 service. They
have no plans to *have a PLAN* to deploy IP6 service. The industry has
been fighting tooth and nail to avoid deploying IP6 since it was invented.
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Once I
started to understand fail2ban's configuration, it wasn't terribly
difficult, but there is a distinct learning curve there.
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files.
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e new postfix, and it SHOULD pick up
precisely where the old one left off.
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tten about will bite you in the ass every time...
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On 2/11/25 16:26, Wietse Venema via Postfix-users wrote:
Phil Stracchino via Postfix-users:
On 2/11/25 14:53, Phil Stracchino wrote:
On 2/11/25 14:48, Florian Piekert wrote:
Amazon.com in the filename.
.com extension.
/name=[^>]*\.(bat|com|exe|dll|vbs|xls|zip)/ REJECT
I imagin
On 2/11/25 14:53, Phil Stracchino wrote:
On 2/11/25 14:48, Florian Piekert wrote:
Amazon.com in the filename.
.com extension.
/name=[^>]*\.(bat|com|exe|dll|vbs|xls|zip)/ REJECT
I imagine I should make that regexp:
/name=[^>]*\.(bat|com|exe|dll|vbs|xls|zip)\b/
(should a \b wor
On 2/11/25 14:48, Florian Piekert wrote:
Amazon.com in the filename.
.com extension.
/name=[^>]*\.(bat|com|exe|dll|vbs|xls|zip)/ REJECT
I imagine I should make that regexp:
/name=[^>]*\.(bat|com|exe|dll|vbs|xls|zip)\b/
(should a \b work here?)
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Fenian
On 2/11/25 14:48, Florian Piekert wrote:
Amazon.com in the filename.
.com extension.
DOH!
Thank you :D
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T
I've successfully sent and received PDF attachments before. In fact, I
just did another test, sending a *different* PDF file between two local
accounts at different domains, and it worked perfectly with no complaint.
So why on EARTH is my mailserver rejecting *THIS* PDF attachment bas
to consider updating it.
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b some time ago, and have seen zero problems with it
whatsoever. It solved a number of then-existing issues for me.
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Mobil
utting the hostname you want in /etc/hostname?
(the exact file may vary by distribution ... on Gentoo it's
/etc/conf.d/hostname)
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en those. (For instance I
currently block .shop *except for* wandering.shop, which is widely used
by other writers.)
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On 8/31/24 15:41, Michael Orlitzky via Postfix-users wrote:
On Sat, 2024-08-31 at 15:33 -0400, Phil Stracchino via Postfix-users
wrote:
My conclusion is: The mail_version set by 3.9.0 is not what is
expected, but *this will only be a problem to you* if you have config
directives that you no
hing not actually needed, and PROBABLY the problem will disappear.
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Don't know whether it's a Gentoo specific issue, but Postfix failed to
restart after update because the new lib directory was created as
/usr/lib64/postfix/3.9, not /usr/lib64/postfix/3.9.0.
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this on the rspamd list
(us...@lists.rspamd.com) instead.
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On 2/7/24 10:48, Matus UHLAR - fantomas via Postfix-users wrote:
postscreen is great against bots, but fail2ban with firwall are still better
against abusers.
And once you get the "Aha!" insight into how its configuration works,
it's actually not difficult to set up.
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error (permanent fail)?
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On 11/9/23 20:25, Phil Stracchino via Postfix-users wrote:
Agh. I've been looking at mail.log on the wrong machine ALL ALONG .
kill me now
This was my problem:
Nov 9 20:26:17 minbar postfix/virtual[3125]: fatal: configuration
error: virtual_mailbox_limit is smaller
Agh. I've been looking at mail.log on the wrong machine ALL ALONG .
kill me now
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On 11/9/23 20:15, Phil Stracchino via Postfix-users wrote:
OK, I also:
* made /var/spool/mail/fenianhouse.com/ and below group-writeable to gid
2000
* added postfix to group 2000
* restarted postfix
but my test message is still sitting in the queue with nothing happening.
I also just manually
On 11/9/23 19:45, Phil Stracchino via Postfix-users wrote:
What probably-should-be-obvious thing am I missing?
Do I need to manually create /var/spool/mail/fenianhouse.com/ ?
Do I need to manually create
/var/spool/mail/fenianhouse.com/seanfenian/ ?
I believe so. When I've used vi
On 11/9/23 19:52, Phil Stracchino via Postfix-users wrote:
I have deliberately not included fenianhouse.com and seanfenian.com in
$mydestination on the mailserver. *Should* I? This is my first try at
setting up virtual mailbox domains, I don't doubt I've made mistakes.
Update: ye
On 11/9/23 19:05, Viktor Dukhovni via Postfix-users wrote:
On Thu, Nov 09, 2023 at 05:50:20PM -0500, Phil Stracchino via Postfix-users
wrote:
virtual_mailbox_domains = seanfenian.com fenianhouse.com
virtual_mailbox_maps= lmdb:/etc/postfix/vmailbox
virtual:
seanfen...@fenianhouse.com
On 11/9/23 18:44, Bill Cole via Postfix-users wrote:
On 2023-11-09 at 17:50:20 UTC-0500 (Thu, 9 Nov 2023 17:50:20 -0500)
Phil Stracchino via Postfix-users
is rumored to have said:
Hey folks,
I'm trying (for the first time) to add two virtual domains for
publishing to my long-time-s
ld-be-obvious thing am I missing?
Do I need to manually create /var/spool/mail/fenianhouse.com/ ?
Do I need to manually create /var/spool/mail/fenianhouse.com/seanfenian/ ?
Something else I've missed?
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p...@co.or
On 9/22/23 13:12, Paul Enlund via Postfix-users wrote:
Does anybody know of a working (production level) ARC capable milter
particularly for a Ubuntu 22.04.2 LTS with postfix 3.6.4 ?
rspamd from 1.6 on has an ARC module.
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Phil Stracchino
Babylon Communications
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s let rspamd handle
DKIM, DMARC etc for you. Any lookup by rspamd happens *after* Postfix
has accepted the message and passed it to milters.
If you're doing that and it's not working, try the rspamd mailing list,
#rspamd on OFTC, or their Telegram channel.
(see https://rspamd.com/s
mentally to move mail from one system
to another.
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attempting to relay).
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On 5/3/23 15:23, Viktor Dukhovni via Postfix-users wrote:
Though perhaps this level of attention to phrasing is only applicable in
Talmud scholarship...
Hey, six thousand years of Talmudic scholarship can't all be wrong! :D
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Babylon Communications
inspection. If you want
deep inspection, do it after acceptance using a more suitable tool ...
such as rspamd. Don't try to do it in postscreen. That's not its
intended purpose.
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Landl
string, that looks
like AT BEST a half-configured MTA, possibly on a half-configured host.
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mpler configuration overall, with less noise in
my mail logs, and I'm happy with the change.
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Pos
tated preference),
Because if you're filtering all Postfix list traffic into the same
folder, you probably want announcements to stand out at a glance. They
may be of immediate importance.
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system by default.
S3 really isn't intended to be used that way. I'm not sure how you'd
make that work and it would probably be a bad idea.
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world).
But I would suggest that [announce] has definite value.
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ting 99.997% overall filtering accuracy with DSpam.)
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On 3/9/23 18:41, Roger Klorese via Postfix-users wrote:
Wietse, as a non-native English-speaker: are you aware that “p-u” is a childish
declaration that something stinks?
But are we REALLY all eight years old?
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p
On 3/8/23 17:44, Phil Stracchino via Postfix-users wrote:
OK, this is very useful information that's not obvious from the
documentation. I have taken a leap of faith and made the tiny handful
of Postfix configuration changes necessary to let Rspamd handle all of
DKIM, DMARC, SPF inste
I have not found
DMARC reporting very useful to me except to confirm that a couple of
moderately large Boston-area remailers consistently throw my DMARC on
the floor. :p
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I'm STILL trying to figure out rspamd's documentation enough to
understand how to enable and configure all of those, so that I can have
one milter instead of four.
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d to
fix the problem.
So what's the option for a more upto date version of DKIM milter for debian?
s/for debian//
FIFY....
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.
Out of sheer curiosity ... Mailman 2 or 3?
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On 2/13/23 16:07, Phil Stracchino wrote:
On 2/13/23 15:18, Daniele Nicolodi wrote:
Isn't this estimate based on the assumption that the scheme used to
generate the password is known?
Well, sort of. But what it means in practice is that after the common
dictionary attack pass, you do a
words. Because most people who are going to use that
password scheme aren't going to pick words like floccinoccipilification.
The target of dictionary-based attacks is the low-hanging fruit.
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ds good if you don't really think about it, but actually is
shockingly cryptographically weak, something like 1.5-2.5 bits of
entropy per WORD if memory serves.
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d a host of links to
other irrelevant things — companies, compilers, recruiting firms,
second-hand frobnitz dealers — also called OpenArc, but this is probably
a good place to start:
https://github.com/trusteddomainproject/OpenARC
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Phil Stracchino
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least.
BTW, if memory serves, 8.x beyond some fairly low minor version (8.0.8
maybe?) will also listen on port 13306, and automatically ASSUME you
want SSL on all connections to 13306. I don't know whether that helps you.
--
Phil Stracchino
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ph...@
ting without ssl via postfix works fine also.
I'm running Postfix 3.5.17 on Debian 11.5
What MySQL version and how is it configured? For some time now MySQL
has actually implemented 'SSL' connections as TLS and should not require
a client certificate.
--
Phil Strac
On 12/22/22 21:19, Samer Afach wrote:
There's a saying I like: Experience is the number of mistakes you've
done so far.
There is truth in that. We are each the sum of our own experiences,
including our mistakes.
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Phil Stracchino
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n possible be to
a complex tool such as Postfix. Perl's documentation, for example, is
extraordinarily deep and complete; but there are reasons why the camel
and llama books exist as well.
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On 12/20/22 21:39, Samer Afach wrote:
I could share postconf too, but it's huge and I don't want to make this
a huge burden unless necessary.
'postconf -n' is much more concise. Try it.
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te domain. What am
I misunderstanding about psmtp and how it works, and does anyone know
how I can get these emails properly delivered?
Looks like a missing . in a DNS PTR record to me.
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Phil Stracchino
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Landline:
forwarding.
The state of mailing list managers right now is also complex. Would
you rather have:
(mailman2)
Or (mailman3)
Or (majordomo)?
Did you consider Sympa? It might be heavier than you want, but it's good.
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Phil Stracchino
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I would send five hundred mails,
And I would send five hundred more
Just to be the man who'd send a thousand mails
To flood your mailbox more...
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h, is that we are in a lot better
place to do that secure authentication now, because our tools (hardware
and software) are so much better and more capable. But that doesn't
mean it's not still a hard problem.
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Phil Stracchino
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not see the
RBL failures and will be unable to learn from them.
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The problem is that postfix then bounces the email back to the (likely
forged) sender, which means my server is sending backscatter.
Does that then become forwardscatter? :)
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On 5/26/22 09:34, Maurizio Caloro wrote:
Yes i know this are the Postfix-forum….
Then why are you asking a non-Postfix question?
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ds is
that there are so many to choose from.)
Don't sweat it, it'll Just Work.
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MTAs.
I'm not aware of any easily-implemented solutions except OpenDMARC.
Unfortunately I don't get nearly the level of DMARC alignment I expect
to and I've been unable to figure out why.
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ice B, and service B is unavailable, I would think of it
as CORRECT BEHAVIOR for service A to stop and post an alert "I can't
reach service B", rather than shrugging and proceeding as though
everything is fine.
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Phil Stracchino
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On 2/23/22 06:38, Wietse Venema wrote:
TWO settings to enable UTF8? Bah.
I have to admit that my feeling on this is "Let LATIN1 die". The future
is encoded in UTF8/UTF16.
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Phil Stracchino
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On 1/3/22 20:02, Ken Wright wrote:
$ sudo chmod g+s /usr/sbin/postdrop
$ ls -la /usr/sbin/postdrop
-r-xr-sr-x 1 postfix postdrop 22808 Sep 7 02:58 /usr/sbin/postdrop
Wietse, is this what's expected?
That looks exactly correct to me.
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nance.)
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On 11/28/21 22:04, raf wrote:
One last bit of advice, add "use strict;" and "use
warnings;" to the script and add "my" before the first
use of each variable. You know you want to. :-)
Better yet, separately declare your variables in their proper scope
bef
ra cluster fronted by HAproxy
or ProxySQL.
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e's really no reason why existing
stable releases can't continue to just support pcre(1).
I'd generally agree with this. If the existing stable versions aren't
broken now, they don't need "fixing". This does not seem like a change
that needs to be b
> people design things with other good people in mind forgetting there are
> bad (and stupid) people in the world.
While this is true, if I write and operate an SMTP server, and someone
sends HTTP commands to it, I consider my responsibility to them to end
at sending back a "Please speak SM
coming mail from
senders forging your domain name. Try something like this:
main.cf:
smtpd_sender_restrictions = permit_mynetworks
...
check_sender_access lmdb:/etc/postfix/sasl_authenticated
check_sender_access lmdb:/etc/postfix/block-local-sen
On 6/5/21 3:59 PM, Phil Stracchino wrote:
>
> I use rspamd in combination with Postfix, and I have the following set
> of aliases defined for spam retraining:
>
> # rspamd retraining
> retrain-ham:"| rspamc learn_ham"
> retrain-spam:
or point me at a working example of what I need
to do here?
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he same issue. The solution in my case was to remove the
DNSBL checks from Postscreen, and reconfigure rspamd to use Spamhaus's
free Data Query Service. As a bonus, rspamd learns more about
recognizing spam if it is performing the RBL checks itself.
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Phil Stracchino
Babylon Co
On 4/23/21 9:26 AM, Jaroslaw Rafa wrote:
> Dnia 23.04.2021 o godz. 08:27:31 Phil Stracchino pisze:
>> On 4/23/21 5:15 AM, Jaroslaw Rafa wrote:
>>> However, "thanks" to Google and other
>>> big e-mail providers who started to enforce that EVERY email send to th
can have a perfectly valid SPF/DMARC setup) -
Well, yes, they can, but they can't send mail to you claiming to be from
your bank's domain without it failing SPF and/or DMARC checks. So it IS
a perfectly valid anti-spam measure.
--
Phil Stracchino
Babylon Communications
ph...@c
fee for delisting. There
> has been recent discussion on "mailop" mailing list regarding UCEPROTECT
> practices and basically everybody agreed that it isn't a reliable blacklist
> and they can't be trusted.
Time was SORBS filled that role. They were completely out of c
rmation
> afterwards).
Exactly, one size does not fit all. Turns out that particular method
isn't a win for my use case.
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.net
p...@co.ordinate.org
Landline: +1.603.293.8485
Mobile: +1.603.998.6958
On 3/22/21 11:28 PM, Phil Stracchino wrote:
> On 3/20/21 10:33 PM, li...@lazygranch.com wrote:
>> This stops many a spammer. I forget who posted the info on the fqrdns
>> but that is very effective as well.
>
>
> So I switched a couple of days ago now
tched a couple of days ago now to using this instead of
reject_unknown_helo_hostname. So far it seems to be working well.
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.net
p...@co.ordinate.org
Landline: +1.603.293.8485
Mobile: +1.603.998.6958
On 3/20/21 8:23 PM, Wietse Venema wrote:
> But it is better to stop using reject_unknown_helo_hostname because
> the are many misconfigured servers that send legitimat mail.
That is an interesting piece of advice.
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.n
discard all four-letter-and-above TLDs
except whitelisted ones, because I'm tired of playing whack-a-mole.
Are you using header_checks rule, or something else?
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.net
p...@co.ordinate.org
Landline: +1.603.293.8485
Mobile: +1.603.998.6958
der and the Subject:
header, which clearly doesn't happen. If the line being tested is the
To: header, it can never match the Subject: clause of your rule; if it
is the Subject: header, then it can never match the To: clause.
To do filtering of this kind you will have to do it somewhere else
question, but: Have you actually tuned and
configured MySQL? Or are you just using it straight out of the box as
about 90% of people do?
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.net
p...@co.ordinate.org
Landline: +1.603.293.8485
Mobile: +1.603.998.6958
> | formail -D 65536 $HOME/.msgid.cache
>
> In other words, the message ID "" was considered a duplicate after the first
> one.
The lesson from which is, don't make message delivery dependent upon an
optional header.
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.net
p...@co.ordinate.org
Landline: +1.603.293.8485
Mobile: +1.603.998.6958
bounce message. That was generated by yahoo.
I think what the OP is asking here is, can Yahoo/Oath be compelled to
provide a more useful failure message relaying the informative response
provided by OP's Postfix instance.
And the answer to that, unfortunately, is no.
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.net
p...@co.ordinate.org
Landline: +1.603.293.8485
Mobile: +1.603.998.6958
On 11/2/20 7:39 PM, Wietse Venema wrote:
> Phil Stracchino:
>>
>> I think that comes down to "The Sympa alias integration instructions for
>> Postfix are wrong." I'm just not sure what's the correct way to handle
>> this.
>
> Indeed, there ar
On 11/2/20 3:52 PM, Wietse Venema wrote:
> Phil Stracchino:
>> <"sympa:caerllewys-test"@caerllewys.net> (expanded from
>> ): unknown user: "sympa:caerllewys-test"
>
> As documented alias files don't use transport names. Please reconside
On 11/2/20 3:04 PM, Benny Pedersen wrote:
> Phil Stracchino skrev den 2020-11-02 17:51:
>
>> minbar:root:/etc/sympa:55 # newaliases
>> postalias: warning: /etc/sympa/sympa_aliases, line 2: name must be
>> local
>
> this file is not newalias compatible, its not
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