If the MX hostname has only IPv6 resolved,
does it have problems in mail functions?
Thanks.
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May 6, 2023 at 8:14 PM, "Ralph Seichter via Postfix-users"
wrote:
>
> * Corey Hickman via Postfix-users:
>
> >
> > Some clients abuse the outgoing smtp server for sending bulk messages.
> > [...] Do you know how to stop this behavior?
> >
>
> There is 'default_destination_recipient_limit'
> >
>
> Because TLS/SSL things are very complex, you have to show us real
> settings all. Like me: (yw-0919: inbound, yw-1204: outbound)
> [1] https://gitlab.com/soyeomul/Gnus/-/raw/master/DKIM/smtp-conf.yw-0919
> [2] https://gitlab.com/soyeomul/Gnus/-/raw/master/DKIM/smtp-conf.yw-1204
>
And P
spacemail.com txt +nocmd +noall +answer
spacemail.com. 47 IN CNAME
spacemail.com.cdn.cloudflare.net.
How does it get mail then? incoming mail was handled by
spacemail.com.cdn.cloudflare.net?
Thanks
Ken Peng
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Please contact Dennis:
dennis baaten.com
regards
>
> Hello,
>
> is Baknu, the author of https://github.com/baknu/DANE-for-SMTP around here?
> Or does someone know her/his personal email address and can forward this
> message as I´d like to get in contact?
> Thanks,
>
> Joachim
>
--
https:
lock backscatter is by using the
> > > backscatter DNSRBL. Make sure you follow the instructions for setting it
> > > up properly:
> > >
> > > https://www.backscatterer.org/?target=usage
> > >
> > > If used correctly it will only bl
May 3, 2023 at 1:43 PM, "Peter via Postfix-users"
wrote:
>
> On 28/04/23 03:59, Sebastian Wiesinger via Postfix-users wrote:
>
> >
> > Hi everyone,
> > I'm not sure if I'm missing something but I can't find out why my
> > body_checks doesn't catch all the backscatter I'm getting right now.
Since mx1 and mx2 have the same IPs included,
it's a waste to postfix's chosen space for IP addresses. For example, the 5 MX
IPs could have 2 duplicates.
So I am not sure why apple has this wasted setup.
Thank you.
>
> Ken Peng via Postfix-users:
>
> >
> > H
17.57.155.34
mx02.mail.icloud.com. 300 IN A 17.57.156.30
What's the advantage for this settings? Thanks.
regards
Ken Peng
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May 2, 2023 at 4:42 PM, "pripercat--- via Postfix-users"
wrote:
>
> Hi, my hosting Njal.la don't permit send email from my postfix server port
> number 25 to prevent spam.
>
> But they say that i can use this setup
> https://njal.la/docs/postfix-smarthost/
>
> with;
> relayhost = [emailserve
This is typical networking issues.
Nothing about postfix.
Regards
>
> So I have a bizarre problem. I can't send e-mail to some servers but I can to
> others. The e-mail that doesn't get sent is due to the connection timing out
> to the remote server.
>
> Another strange problem is that some
:
1. postscreen_dnsbl_sites where sites should also specify a negative value for
matching the threshold, right?
2. I am using postfix 3.6.4. if I continue with the old parameter
postscreen_dnsbl_whitelist_threshold, what will happen?
Thanks.
Ken Peng
> >
> > When I create a raw socket to the receiving e-mail server, I can send and
> > receive commands to it just fine.
> >
> >
Are you sure there is no net filters or ISP blocking issues? they block
external port 25, other ports like 587/465 may have no problem.
regards.
April 29, 2023 at 6:40 PM, "Kolusion K via Postfix-users"
wrote:
>
> Hello
>
>
>
>
>
> I am having a painful experience with Postfix and I hope that someone can
> help me.
>
>
>
> I am trying to send an e-mail, but the receving e-mail server is timing out,
> as per Postfix's mail
_action = enforce
Thanks.
>
> On Sat, 29 Apr 2023, Ken Peng via Postfix-users wrote:
>
> >
> > Hello
> >
> > When I enabled postscreen, why even gmail's sender IP was greylisted?
> >
>
> Did you expect or configure to deal with gmail dif
Hello
When I enabled postscreen, why even gmail's sender IP was greylisted?
The log says:
Apr 29 15:35:35 mxin postfix/postscreen[59408]: NOQUEUE: reject: RCPT from
[209.85.160.53]:50219: 450 4.3.2 Service currently unavailable;
from=, to=, proto=ESMTP,
helo=
And this is my configuration fo
April 28, 2023 at 1:02 AM, "Phil Stracchino via Postfix-users"
wrote:
>
> On 4/27/23 04:47, Ralph Seichter via Postfix-users wrote:
>
> >
> > * Ken Peng via Postfix-users:
> > Using rspamd instead of postscreen?
> > I'm not quite sure what
April 29, 2023 at 12:38 AM, "Jaroslaw Rafa via Postfix-users"
wrote:
>
> Dnia 28.04.2023 o godz. 15:59:53 Gerd Hoerst via Postfix-users pisze:
>
> >
> > question 1st : is it a good idea to reject any email which is not
> > sent from a domain (means sen...@domain.tld) any other like
> > se
Do you know any plugins for scoring a domain?
For example, new registered domain, free domain get the low scores.
Thanks.
--
https://kenpeng.pages.dev/
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Using rspamd instead of postscreen?
>
> Dear All,
>
> I am building a new server where I would like to build the best spam filter
> possible :)
> I am checking postscreen these days. I am planning to turn on the "deep
> tests" as well, but it seems to be really scary to me :)
>
> In the doc th
Hello
Can the domain certificates sign its sub domain?
For example, mail.a.com was signed by certs of a.com.
If so, does this make sense to DMRC of mail.a.com?
Thanks.
--
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er IP as well?
Thanks
--
Ken Peng
https://kenpeng.pages.dev/
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got your points which I totally agree with.
--
Ken Peng
https://kenpeng.pages.dev/
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On 2023-04-06 19:07, Jaroslaw Rafa via Postfix-users wrote:
I just now learned about the UTF8 thing, I would never think of using
non-ASCII characters in host/domain names :)
You can dig the UTF8 hostname, they are valid for query.
$ dig 腾讯.公司 ns +short
ns1.brandcloudns.com.
ns2.brandcloudns
On 2023-04-06 09:32, Sean Gallagher via Postfix-users wrote:
From reading the code, these two restrictions seem equivalent except
when SMTPUTF8 extension is used.
when the SMTPUTF8 is in play, reject_non_fqdn_helo_hostname will
convert a hostname containing UTF to an internationalized domain nam
I found their forwarding policy is somewhat strange.
They changed the "to:" header address in the forwarded email to the
destination address.
For example, u...@foo.com writes to t...@5x2.de, this mail will be
forwarded to d...@gmail.com
When gmail receives this email, the "to:" header is d...@gmail
You can try this tool which will tell you how your email looks like spam.
https://www.mail-tester.com/
Regards.
On Wed, Sep 15, 2021 at 6:13 PM Jean-François Bachelet
wrote:
> Hello ^^)
>
>
> Well, I've tried to test my server setup (postfix++Spamassassin++) with
> an official Gtube test mail
If my email provider has taken your policy, I will be denied by them since
I always was using the VPN to access the internet.
Almost every well known VPN (pureVPN, keepsolid etc) has a large range of
IPs for their users, and these IPs are in different countries.
regards.
On Tue, Sep 14, 2021 at 3
ss of this
information via a piped script?
--
B. Regards,
Ken Peng - k...@cloud-china.org
,
Ken Peng - k...@cloud-china.org
age is marked as spam, since is considered a spoofed.
Can I fixed this adding some header?
Thank you
--
B. Regards,
Ken Peng - k...@cloud-china.org
e is a provider which has supported DANE well?
Yes we have contact with Germany providers like web.de/GMX/Freenet/Arcor
and smaller ones posteo.de/mailbox.org.
--
B. Regards,
Ken Peng - k...@cloud-china.org
Viktor,
On 2015/9/14 星期一 11:16, Viktor Dukhovni wrote:
On Mon, Sep 14, 2015 at 10:32:46AM +0800, Ken Peng wrote:
All our MX servers can be setup with tls secure.
So the servers in question are inbound MX hosts accepting mail from
other domains on port 25? And you were asking a question
g SSL.
This is what I actually want to ask for, about the transfer secure.
Thx.
On 2015/9/14 星期一 10:15, Benny Pedersen wrote:
On September 14, 2015 4:04:51 AM Ken Peng wrote:
From production viewpoints, we can develop that a encrypted-email
service easily. But if we can't assure the secur
encrypted-email
service easily. But if we can't assure the secure transfer, what
destination these systems should exist for?
Thanks.
On 2015/9/14 星期一 10:00, Viktor Dukhovni wrote:
On Mon, Sep 14, 2015 at 09:56:27AM +0800, Ken Peng wrote:
On 2015/9/14 星期一 9:50, Viktor Dukhovni wrote:
Wh
9:50, Viktor Dukhovni wrote:
What is the Postfix version of your server? What software do the
clients use?
--
B. Regards,
Ken Peng - k...@cloud-china.org
s you have to accept mail
that isn't encrypted.
--
B. Regards,
Ken Peng - k...@cloud-china.org
On 2015/9/14 星期一 9:23, Alice Wonder wrote:
On 09/13/2015 06:07 PM, Ken Peng wrote:
Hi,
For security transfer, can I have the setup in Postfix to force peer MTA
using SMTP/SSL port (465) for email delivery only? Thx.
Port 465 is deprecated. It should not be used.
25 is what your server
Hi,
For security transfer, can I have the setup in Postfix to force peer MTA
using SMTP/SSL port (465) for email delivery only? Thx.
--
B. Regards,
Ken Peng - k...@cloud-china.org
If email data traffic is not that big, I think pobox.com, dyn.com etc is
a good gateway for email antispam/antivirus.
Thx.
On 2015/9/9 星期三 11:20, Wolfe, Robert wrote:
The best one I've found and what I use to host other people's spam filtering
ishttp://www.virtualtothecore.com/en/efa-nice-fre
...@fastmail.com wrote:
On Tue, Sep 8, 2015, at 06:05 PM, Ken Peng wrote:
Google and just found one,
https://www.digitalocean.com/community/tutorials/how-to-install-and-setup-spamassassin-on-ubuntu-12-04
I'm not asking "How?". I can Google. I'm asking for recommendation
Google and just found one,
https://www.digitalocean.com/community/tutorials/how-to-install-and-setup-spamassassin-on-ubuntu-12-04
HTH, :)
On 2015/9/9 星期三 9:01, joh...@fastmail.com wrote:
Ken
On Tue, Sep 8, 2015, at 05:49 PM, Ken Peng wrote:
How about Spamassassin? we have been using it for a
How about Spamassassin? we have been using it for a long time.
On 2015/9/9 星期三 7:26, Andreas Meyer wrote:
Hello!
joh...@fastmail.com schrieb am 08.09.15 um 14:06:30 Uhr:
My question is - if I want to Postfix-integrate A/V & A/S *AND* stick to
projects that have active development and commun
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