Re: Postfix in DMZ: Really?

2022-08-29 Thread Matus UHLAR - fantomas
On 27.08.22 13:30, lutz.niede...@gmx.net wrote: Normally, I would say it is a good idea to set up a DMZ, put relaying postfix in there and the final postfix into the LAN. This is the design that was planned in the current project and implemented many times before. But now, some believe that

Re: started getting 550 #5.7.1 SPF unauthorized mail

2022-08-29 Thread Matus UHLAR - fantomas
On 25.08.22 13:41, li...@sbt.net.au wrote: I have a simple 'mail list' where an alias 'ct...@sbt.net.au' sends email to several recipients, that's been in use since long time. Aug 25 09:38:55 geko postfix/smtpd[21733]: 4678220053B:

Re: DNS issue in the multi instance

2022-08-29 Thread Wietse Venema
You need to look in your logs. https://www.postfix.org/DEBUG_README.html#logging Wietse

DNS issue in the multi instance

2022-08-29 Thread juan smitt
Hi, There is a postfix server (v3.4.13) with a multi instance (master.cf): #servicetype private unpriv chroot wakeup maxproc command 127.0.0.1:30004 inet n- n - - smtpd The master instance can send email to anywhere on the internet but the multi