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  • 0 posts edited
  • 1 helpful flag
  • 21 votes cast
Feb
18
revised Postfix + SpamAssassin: Incoming mail headers changes
added 1 character in body
Feb
15
comment Postfix does not send mails until the service is restarted
@user3413723 that seems specific to your case (or some cases). I did a very detailed analysis of my boot (because I also had issues with other programs) and the issue seems to be related to the network-online target. I've extensively documented this here: unix.stackexchange.com/questions/245635/… and here github.com/systemd/systemd/issues/2037. Looks like systemd-networkd-wait-online doesn't wait for IPv6 addresses to come up, it just waits for IPv4.
Feb
1
comment Postfix: Remove References to Server Software
@tarleb "hiding as much non-vital information as possible is generally regarded as good security practice" thats it. Also... seems like some services change their spam rating when detecting email coming from postfix servers.
Jan
31
accepted Postfix: Remove References to Server Software
Jan
29
accepted Postfix: Users impersonating other users at same domain
Jan
29
revised Postfix: Users impersonating other users at same domain
deleted 8 characters in body
Jan
26
awarded  Tumbleweed
Jan
25
comment Cannot bring up wifi interfaces on Kali Linux
What happens fi you do iw wlan0 scan does it output any wireless networks?
Jan
25
revised Postfix + SpamAssassin: Incoming mail headers changes
added 607 characters in body
Jan
25
comment Add warning to emails received by Postfix without TLS
Yeah Sieve's editheader extension might be the easiest way to go. Info here: mvmf.org/docs/draft-degener-sieve-editheader-00.txt (section 5). To send your email over to the Sieve rules you might want to follow my answer here unix.stackexchange.com/a/252907/23085. Use the same procedure but just pipe the emails directly to Dovecot local delivery and require editheader extension. The code should be easy to come with following the examples on the link.
Jan
25
answered Postfix: Users impersonating other users at same domain
Jan
25
comment Postfix: Users impersonating other users at same domain
@tarleb I managed to make it with your precious help (again). If you want just replay the question with this answer I've made pastebin.com/9dZ0wWgQ and I'll gladly accept it. Without your help I wasn't able to get to that solution. Thank you.
Jan
25
comment Postfix: Users impersonating other users at same domain
But... smtpd_sender_login_maps usually contains something like user1@mydomain.dev user1 establishing a relationship between (authenticated) users and message addresses. Can I just point this to the same thing as virtual_mailbox_maps and then maybe change the MySQL query to include alias as well?
Jan
25
comment Postfix: Users impersonating other users at same domain
Well after reject_authenticated_sender_login_mismatch I always get 5.7.1 <user1@mydomain.dev>: Sender address rejected: not owned by user user1@mydomain.dev”. Maybe I've to set smtpd_sender_login_maps as well, so it can tell postfix witch users can't send? @tarleb
Jan
25
answered All mail sent by Postfix is received as spam
Jan
25
comment Postfix does not send mails until the service is restarted
Are you using Debian? Can you post the output of service postfix status when the server is NOT sending email (before the restart). I've seen similar behavior when postfix can't bind to the network addresses after a system reboot (because it starts before the network is ready). Restarting postfix fixes it because the network it working properly thus postfix can bind at that time.
Jan
25
asked Postfix: Remove References to Server Software
Jan
25
asked Postfix: Users impersonating other users at same domain
Jan
19
revised Samba Debian Server + OSX Client = High CPU Load
deleted 141 characters in body
Jan
19
revised Samba Debian Server + OSX Client = High CPU Load
edited body