Re: Preventing domain impresonation

2020-08-27 Thread Rainer Ruprechtsberger
nuked like 80-90% of incomming spam. Now it's below 5% of incomming traffic. Not sure if I would implement it now again (was worth it when we implemented it though). It works only if you have a small number of users that need forwarding back to you. lg, rupi -- Rainer Ruprechtsberger Volks

Re: TLS verification problem - ca untrusted, but it shouldn't be

2020-07-08 Thread Rainer Ruprechtsberger
On 08.07.20 14:34, Viktor Dukhovni wrote: > > /var/spool/postfix/etc/ssl/certs/ca-certificates.crt != > /etc/ssl/certs/ca-certificates.crt > > Why are you running s_client with that particular choice of filename? > Along with any private keys, DH parameters, ... the CAfile is loaded by >

Re: TLS verification problem - ca untrusted, but it shouldn't be

2020-07-08 Thread Rainer Ruprechtsberger
On 08.07.20 13:12, Christian Kivalo wrote: [...] > How did you call posttls-finger? Did you use "-F" and point it to > /etc/ssl/certs/ca-certificates.crt? > >> But I do trust this CA: >> smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt > This setting does not affect posttls-finger Thanks - I

Re: TLS verification problem - ca untrusted, but it shouldn't be

2020-07-08 Thread Rainer Ruprechtsberger
Hi, > cat server.cer intermediate.cer > server_chain.cer > > After that in the main.cf you use the server_chain.cer as > smtpd_tls_cert_file. > my problem is the other direction - I want to verify a remote SMTP server. Postfix is a smtp client in this instance.. TLS verification is required for

TLS verification problem - ca untrusted, but it shouldn't be

2020-07-08 Thread Rainer Ruprechtsberger
icate is signed by above mentioned CA (which posttls-finger says it doesn't trust). My system is a Debian Buster, postfix version 3.4.10-0+deb10u1. Any pointers to resolve this would be appreciated. lg, -- Rainer Ruprechtsberger Volkshilfe Oberösterreich IT 4020 Linz, Glimpfingerstrasse 48

Smtp delivery status filter - not working

2020-03-05 Thread Rainer Ruprechtsberger
er it earlier) I just c&p'd. However - it does not seem to do anything. Any mail sent to such a destination still gets a 4.. status. Any help debugging whats going on would be appreciated. /r -- Rainer Ruprechtsberger Volkshilfe Oberösterreich IT 4020 Linz, Glimpfingerstrasse 48 Tel.: +4