Re: Link for experimental postfix-3.5-20190418

2019-04-28 Thread Wietse Venema
John Fawcett: > Hi > > is this the right link for the latest experimental release? I can't seem > to get it to work. > > http://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-3.5-20190418.tar.gz I forgot to upload that release. In the meantime it has been updated to postfix-3.5-2

Re: Link for experimental postfix-3.5-20190418

2019-04-28 Thread John Fawcett
On 28/04/2019 23:38, Viktor Dukhovni wrote: > On Sun, Apr 28, 2019 at 11:17:01PM +0200, John Fawcett wrote: > >> is this the right link for the latest experimental release? I can't seem >> to get it to work. >> >> http://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-3.5-20190418.ta

Re: Link for experimental postfix-3.5-20190418

2019-04-28 Thread Viktor Dukhovni
On Sun, Apr 28, 2019 at 11:17:01PM +0200, John Fawcett wrote: > is this the right link for the latest experimental release? I can't seem > to get it to work. > > http://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-3.5-20190418.tar.gz The directory contents are: File:postfi

Link for experimental postfix-3.5-20190418

2019-04-28 Thread John Fawcett
Hi is this the right link for the latest experimental release? I can't seem to get it to work. http://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-3.5-20190418.tar.gz John

Re: TLS client certificates and auth external

2019-04-28 Thread Wietse Venema
Continuing the discussion of a strawman user interface, I see some opportunities to generalize this and to make some improvements elsewhere in Postfix. We start with Postfix access control based on client certificate feartures: smtpd_mumble_restrictions = ... check_tls_access { m

Re: How "safe" is reject_unknown_helo_hostname?

2019-04-28 Thread Wietse Venema
Dominic Raferd: > On Sun, 28 Apr 2019 at 16:31, Matus UHLAR - fantomas > wrote: > > > >>>On 27 Apr 2019, at 15:28, TG Servers wrote: > > But you mean to keep reject_non_fqdn_helo_hostname and > > reject_invalid_helo_hostname, right? > > > > >>On 27 Apr 2019, at 14:28, Bill Cole > > >> wro

Re: How "safe" is reject_unknown_helo_hostname?

2019-04-28 Thread Phil Stracchino
On 4/28/19 6:32 AM, @lbutlr wrote: > > The rejects are very cheap (practically free) while processing the pcre file > takes more resources. My thinking is the order is less stressful. Yeah, this is my policy too. Straightforward yes/no rules first; run the messages that pass *those* through th

Re: postfix and MTA-STS

2019-04-28 Thread Wietse Venema
Viktor Dukhovni: > The socketmap service could check for DANE TLSA records first, > and return "dane", it would have to check that the domain is > DNSSEC signed, and then check whether all of (the first 10 by > preference to reduce delay) the MX hosts have TLSA records. A. Schulze: > That mean the

Re: How "safe" is reject_unknown_helo_hostname?

2019-04-28 Thread Dominic Raferd
On Sun, 28 Apr 2019 at 16:31, Matus UHLAR - fantomas wrote: > >>>On 27 Apr 2019, at 15:28, TG Servers wrote: > But you mean to keep reject_non_fqdn_helo_hostname and > reject_invalid_helo_hostname, right? > > >>On 27 Apr 2019, at 14:28, Bill Cole > >> wrote: > >>>Yes but as part of smtpd_

Re: How "safe" is reject_unknown_helo_hostname?

2019-04-28 Thread Matus UHLAR - fantomas
On 27 Apr 2019, at 15:28, TG Servers wrote: But you mean to keep reject_non_fqdn_helo_hostname and reject_invalid_helo_hostname, right? On 27 Apr 2019, at 14:28, Bill Cole wrote: Yes but as part of smtpd_helo_restrictions with a substantial check_helo_access map ahead of them which has a bun

Re: postfix and MTA-STS

2019-04-28 Thread A. Schulze
Hello Viktor, Am 27.04.19 um 23:26 schrieb Viktor Dukhovni: > The socketmap service could check for DANE TLSA records first, and> return > "dane", it would have to check that the domain is DNSSEC> signed, and then > check whether all of (the first 10 by preference> to reduce delay) the MX > ho

Re: How "safe" is reject_unknown_helo_hostname?

2019-04-28 Thread @lbutlr
On 28 Apr 2019, at 03:00, Allen Coates wrote: > On 27/04/2019 23:21, @lbutlr wrote: >> >> smtpd_helo_restrictions = permit_mynetworks, reject_invalid_helo_hostname, >>reject_non_fqdn_helo_hostname, check_helo_access >>pcre:/etc/postfix/helo_checks.pcre permit > I usually put my access-c

Re: How "safe" is reject_unknown_helo_hostname?

2019-04-28 Thread Allen Coates
I usually put my access-control lists EARLY, so I have yes / no / "further-processing" options Allen C On 27/04/2019 23:21, @lbutlr wrote: > > smtpd_helo_restrictions = permit_mynetworks, reject_invalid_helo_hostname, > reject_non_fqdn_helo_hostname, check_helo_access > pcre:/etc/postf

Re: Sporadic, repeated connections from aws

2019-04-28 Thread Dominic Raferd
On Sun, 28 Apr 2019 at 07:25, @lbutlr wrote: > On Apr 27, 2019, at 20:15, Noel Jones wrote: > > > > I still use the fqrdns.pcre too, and I can't remember the last false > negative when it rejected good mail. > > Thanks. That’s what I suspected, but confirmation is good to have. I use it, and f