Re: OT: Sender header vs DKIM

2018-10-26 Thread Dominic Raferd
On Fri, 26 Oct 2018 at 07:58, Richard James Salts wrote: > On Friday, 26 October 2018 12:53:48 AM AEDT Scott Kitterman wrote: > > On October 25, 2018 10:56:53 PM UTC, Richard James Salts > wrote: > > >Hi all, > > > > > >This is offtopic in regards to postfix but I bring it up because of the > >

Re: how set postfix server as non-functional

2018-10-26 Thread Poliman - Serwis
2018-10-25 15:28 GMT+02:00 Matus UHLAR - fantomas : > On Thu, Oct 25, 2018 at 08:11:35AM +0200, Poliman - Serwis wrote: >>> Hi. I heard that having a non-functional server as the primary MX is a well-known trick to reduce the amount of incoming spam, as most software used by spammer

Re: TLSv1.2 only for auth connection

2018-10-26 Thread Thomas Bourdon
That's what I do, it works perfectly. Thanks. Le 25.10.2018 19:39, Wietse Venema a écrit : Thomas Bourdon: Hi, First of all, I apologize for my bad english. I use postfix-3.3.1 and openssl-1.0.2. Actual ssl config : tlsv1.0 minimum is set for smtp and smtpd. tlsv1.2 minimum is set for submis

Re: how set postfix server as non-functional

2018-10-26 Thread Matus UHLAR - fantomas
On 26.10.18 09:27, Poliman - Serwis wrote: So generally speaking - I should check postscreen, use a decent RBL and keep smtpd more available for legitimate email. How set decent RBL in Postfix and which are decent? I believe googling for RBLs, especially mailing lists' archives may help to fin

Thank you Wietse, supporters and contributors for Postfix

2018-10-26 Thread Stefan Bauer
We just noticed once again, that postfix is so well designed in a way, that often we did not even think of "corner cases" that are already handled by default in a way, that is in most cases exactly how is should be setup. Just picking a random setup - relaying mails to external relayhosts by sende

Re: how set postfix server as non-functional

2018-10-26 Thread Poliman - Serwis
2018-10-26 10:01 GMT+02:00 Matus UHLAR - fantomas : > On 26.10.18 09:27, Poliman - Serwis wrote: > >> So generally speaking - I should check postscreen, use a decent RBL and >> keep smtpd more available for legitimate email. How set decent RBL in >> Postfix and which are decent? >> > > I believe g

Re: how set postfix server as non-functional

2018-10-26 Thread B. Reino
On 2018-10-26 14:36, Poliman - Serwis wrote: Thank you for answer. I have static IP - I bought VPS from OVH. I have there configured few domains with mailboxes. On the server are services like www, ftp, mail. So, if I understood well, I should block port 25. Maybe you can go back one step an

Re: Thank you Wietse, supporters and contributors for Postfix

2018-10-26 Thread Wietse Venema
Stefan Bauer: > We just noticed once again, that postfix is so well designed in a way, that > often we did not even think of "corner cases" that are already handled by > default in a way, that is in most cases exactly how is should be setup. > > Just picking a random setup - relaying mails to exte

Re: Mailer-Daemon Domain Part

2018-10-26 Thread Wietse Venema
McFly86: > Hi, > > I'm not sure if i got myself confused but here is what I'd like/have to > achieve: > > If an internal user is sending an email and postfix receives a bounce, the > Mailer-daemon should have the hostname as domain part. I know that I can use > $myhostname to set $myorigin for th

Re: how set postfix server as non-functional

2018-10-26 Thread Durga Prasad Malyala
Hi, Advertising a primary mx and blocking port 25 for it under the assumption that spammers won't try the secondary mx is wrong. In fact spammers target secondary mx more than primary mx since it is a fact that everyone spends more time on securing and tuning the primary server. We maintain many se