On Jul 13, 2021, at 2:15 AM, Matus UHLAR - fantomas wrote:
>> On Jul 11, 2021, at 1:06 PM, Claus R. Wickinghoff
>> wrote:
>>> I think this can be achieved with reject_unverified_recipient to query
>>> dovecot via lmtp but I've no practical experience with this. Probably
>>> you've to do som
On Jul 11, 2021, at 1:06 PM, Claus R. Wickinghoff wrote:
I think this can be achieved with reject_unverified_recipient to query
dovecot via lmtp but I've no practical experience with this. Probably
you've to do some googling...
On 12.07.21 10:19, Ron Garret wrote:
That turned out to be the
For the record:
On Jul 11, 2021, at 1:06 PM, Claus R. Wickinghoff wrote:
> I think this can be achieved with reject_unverified_recipient to query
> dovecot via lmtp but I've no practical experience with this. Probably you've
> to do some googling...
That turned out to be the Right Answer. I
On 11.07.21 23:26, Ron Garret wrote:
This has me wondering: if a message is sent to multiple recipients and some
are valid and others are not, what is the Right Thing to do?
The right thing is to refuse all non-existing recipients, which postfix does
by default if it knows what addresses exist.
Thanks, that was very helpful.
This has me wondering: if a message is sent to multiple recipients and some are
valid and others are not, what is the Right Thing to do?
rg
P.S. Just FYI:
> I'm not sure what the problem is with Postfix and sqlite
See
http://postfix.1071664.n5.nabble.com/What-i
On 7/11/21 3:46 PM, Ron Garret wrote:
Ah. That may be my problem then. I’m using Dovecot via LMTP for local
delivery. I thought that postfix would receive information about non-existent
users via that protocol, but I guess it doesn’t and ends up just accepting
everything.
So… is dovecot ac
On 2021-07-11 at 15:46:45 UTC-0400 (Sun, 11 Jul 2021 12:46:45 -0700)
Ron Garret
is rumored to have said:
On Jul 11, 2021, at 12:22 PM, Matus UHLAR - fantomas
wrote:
The problem is that a rejected recipient produces a mailer-daemon
reply.
only if you accept mail for such recipient.
Ah.
Ron Garret:
[ Charset windows-1252 converted... ]
>
> On Jul 11, 2021, at 12:22 PM, Matus UHLAR - fantomas
> wrote:
>
> >
> >> The problem is that a rejected recipient produces a mailer-daemon reply.
> >
> > only if you accept mail for such recipient.
>
> Ah. That may be my problem then. I
Hi,
I thought that postfix would receive information about non-existent users via
that protocol, but I guess it doesn’t and ends up just accepting everything.
These are two different things:
1. postfix gets the e-mail from the internet via smtp and puts in his
queue. From this point on post
On Jul 11, 2021, at 12:22 PM, Matus UHLAR - fantomas wrote:
>
>> The problem is that a rejected recipient produces a mailer-daemon reply.
>
> only if you accept mail for such recipient.
Ah. That may be my problem then. I’m using Dovecot via LMTP for local
delivery. I thought that postfix
Ron Garret:
I have recently come under a backscatter spam attack from one
specific domain. This domain has blacklisted my server?s IP
address, and so bounce replies sent to this domain are piling up
in my mail queue and I have to go through periodically and manually
delete them. I don?t want to
Hi,
The problem is that a rejected recipient produces a mailer-daemon reply.
You need to get rid of them.
My approach is to reject them in smtp dialogue. I generate a list of
valid recipient addresses by script automatically and use this (hashed)
list in smtpd_recipient_restrictions:
See http://www.postfix.org/DEBUG_README.html#mail, which describes how
best to get useful help here.
Actual log excerpts, sample messages related to that logging, and
'postconf -n' output would help a great deal in understanding your
problem.
In general, you only can fully fix backscatter (i
Yes, I looked at that, but AFAICT that is all about blocking INBOUND
backscatter spam, not stopping outbound messages.
On Jul 11, 2021, at 10:15 AM, Kevin N. wrote:
> This might help: http://www.postfix.org/BACKSCATTER_README.html
>
> Cheers,
>
> K.
>
>
>> On Jul 11, 2021, at 9:58 AM, Wiets
On Jul 11, 2021, at 10:12 AM, Wietse Venema wrote:
> Ron Garret:
> [ Charset windows-1252 converted... ]
>>
>> On Jul 11, 2021, at 9:58 AM, Wietse Venema wrote:
>>
>>> Ron Garret:
I have recently come under a backscatter spam attack from one
specific domain. This domain has blackl
This might help: http://www.postfix.org/BACKSCATTER_README.html
Cheers,
K.
On Jul 11, 2021, at 9:58 AM, Wietse Venema wrote:
Ron Garret:
I have recently come under a backscatter spam attack from one
specific domain. This domain has blacklisted my server?s IP
address, and so bounce replie
Ron Garret:
[ Charset windows-1252 converted... ]
>
> On Jul 11, 2021, at 9:58 AM, Wietse Venema wrote:
>
> > Ron Garret:
> >> I have recently come under a backscatter spam attack from one
> >> specific domain. This domain has blacklisted my server?s IP
> >> address, and so bounce replies sent
On Jul 11, 2021, at 9:58 AM, Wietse Venema wrote:
> Ron Garret:
>> I have recently come under a backscatter spam attack from one
>> specific domain. This domain has blacklisted my server?s IP
>> address, and so bounce replies sent to this domain are piling up
>> in my mail queue and I have to
Ron Garret:
> I have recently come under a backscatter spam attack from one
> specific domain. This domain has blacklisted my server?s IP
> address, and so bounce replies sent to this domain are piling up
> in my mail queue and I have to go through periodically and manually
> delete them. I don?t
I have recently come under a backscatter spam attack from one specific domain.
This domain has blacklisted my server’s IP address, and so bounce replies sent
to this domain are piling up in my mail queue and I have to go through
periodically and manually delete them. I don’t want to disable bo
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