It is a feature. Putty has option to use "Telnet" protocol or "Raw"
protocol.
On Tue, 25 Apr 2023 at 16:43, Wietse Venema via Postfix-users <
postfix-users@postfix.org> wrote:
> Ue netcat (nc) instead of putty.
>
> I suspsect that putty is sending telnet protocol options, even when
> it connets t
On Tue, 2 May 2023 at 15:54, Kolusion K via Postfix-users <
postfix-users@postfix.org> wrote:
> Greetings
>
>
> I have found some contradicting Postfix documentation and I feel that it
> is my duty to make a revelation of it.
>
> https://www.postfix.org/postconf.5.html
>
> The inet_interface param
Hello,
On Fri, 9 Jun 2023 at 02:40, Richard Troy via Postfix-users <
postfix-users@postfix.org> wrote:
>
> Given all the work I did on Postfix to stop relaying from unauthorized
> parties, and how after a mountain of work the "open-mail-relaying" was
> only coming from a couple of spammers in Rus
On Thu, 14 Dec 2023 at 12:14, anant--- via Postfix-users <
postfix-users@postfix.org> wrote:
>
> and used header_checks to hold the mails in queue.
>
> Now, as no decision is made, I want to continue to hold for another 13
> days more.
>
>
> Will this change, hold the queue for another 13 days mor
On Tue, 2 Jan 2024 at 13:13, Matus UHLAR - fantomas via Postfix-users <
postfix-users@postfix.org> wrote:
> Hello,
>
> http://www.postfwd.org/ratelimits.html
>
> Of course, if there is any other tool that can do that, I'll look.
>
>
> However, I need to find the limits to set. Guessing is quite h
On Wed, 10 Jan 2024 at 16:45, Viktor Dukhovni via Postfix-users <
postfix-users@postfix.org> wrote:
>
> Keeping in mind
> that of course in smtpd(8) there's no scoring, so the whitelists with
> negative scores aren't available. If you absolutely want to ensure
> that the whitelists are honoured,
Hi,
When/how does postfix prevent duplicate deliveries when delivering to an
alias and explicitly also to the alias result? For example all@domain + Cc
to one of the members of that alias. I have found parameters
"duplicate_filter_limit" and "enable_original_recipient" that mention it,
but I don't
On Sun, 14 Apr 2024 at 01:15, Wietse Venema via Postfix-users <
postfix-users@postfix.org> wrote:
> If there is a difference in deduplication, then you have introduced
> a difference up-stream of the delivery agents. You need to find
> that difference.
>
Unfortunately I don't remember in which ca
On Tue, 4 Jun 2024 at 11:19, Celal.Dikici via Postfix-users <
postfix-users@postfix.org> wrote:
> Hello,
> For the e-mail infrastructure we use roundcube 1.6.6 postfix 3.7.10,
> dovecot 2.3.19.1 installed on debian 12.05. We use the larry theme as the
> interface. We use managesieve plugin for fi
On Sat, 20 Jul 2024 at 06:28, timothy via Postfix-users <
postfix-users@postfix.org> wrote:
>
> When I open webmail, it always displays a dropdown menu for me to select
> an IMAP host.This is so frustrating.How to disable this drop-down menu and
> automatically match email addresses to imap hosts?
On Tue, 30 Jul 2024 at 09:51, Phil Biggs via Postfix-users
wrote:
> I only use list.dnswl.org (for good ones) and zen.spamhaus.org (bad) in
> postscreen. Very effective but I did, just once, see an IP simultaneously
> listed in both.
DNSWL is not for the good ones. It is for well-known mailserve
On Wed, 4 Dec 2024 at 00:16, Tim Harman via Postfix-users
wrote:
>
> FIXED
>
> smtpd_tls_session_cache_timeout = 0
> So there must be something going on in the version of Debian I have (10)
> where TLS session tickets aren't working/negotiated/stored correctly.
I have postfix on Debian 10 wi
On Tue, 24 Jun 2025 at 13:39, Wietse Venema via Postfix-users
wrote:
>
> It's necessary but not sufficient. As documented, this changes how
> dovecot_destination_concurrency_limit works, from concurrency per
> domain, to concurrency per recipient (in addition to the obvious
> "one recipient per do
On Tue, 24 Jun 2025 at 13:48, Benny Pedersen via Postfix-users
wrote:
>
> maybe change from lda to lmtp ?, so its not a problem at all with pipe
Yes, I wanted to use LMTP originally. I have this note in my install notes:
"Cannot use LMTP, because it does not provide info about the original
recipi
Hello,
I am using dovecot-lda as delivery for virtual users, Since upgrading
from debian 10 (postfix 3.4.23, dovecot 2.3.16) to debian 11 (postfix
3.5.25, dovecot 2.3.21), it seems postfix is using parallel delivery
of multiple emails to the same recipient, which breaks sieve
"duplicate" filter (i
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