[pfx] Re: ipv6 connection
Wietse, I run the script every five minutes for more than 13 hours to the DNS server of Cloudflare (2620:fe::fe). Four times I had some packet drops (about 25%). I think that cann't explain why postfix is not reachable on ipv6. Can postscreen drop an ipv6 connection? Gr., Jack Op 28-04-2024 om 16:20 schreef Wietse Venema via Postfix-users: Jack Raats via Postfix-users: In the Netherlands but also in other countries you can use internet.nl to test your e-mail and webserver. It test your e-mailserver for ipv6 connectivity, SPF, DMARC and DKIM. My mailserver scores sometimes 100%, but also sometimes lower because it cann't connect postfix on ipv6. In main.cf mynetworks and inet_interfaces has my ipv4 and ipv6 address. inet_protocols = all. In the rest of my configs I'm using my ipv4 address. What is possible wrong in postfix or is it the connection? To monitor your IPv6 connectivity, you could run a cron job that runs a script that pings a well-connected IPv6 address: #!/bin/sh ping -q -c 10 some-ipv6 | loggger -t check-ping -p daemon.info and scan the log every day or so. Wietse ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
[pfx] ipv6 connection
In the Netherlands but also in other countries you can use internet.nl to test your e-mail and webserver. It test your e-mailserver for ipv6 connectivity, SPF, DMARC and DKIM. My mailserver scores sometimes 100%, but also sometimes lower because it cann't connect postfix on ipv6. In main.cf mynetworks and inet_interfaces has my ipv4 and ipv6 address. inet_protocols = all. In the rest of my configs I'm using my ipv4 address. What is possible wrong in postfix or is it the connection? Gr., Jack ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
[pfx] Re: Sending email via ipv4
Op 24-03-2024 om 20:53 schreef Viktor Dukhovni via Postfix-users: On Sun, Mar 24, 2024 at 08:39:16PM +0100, Jack Raats via Postfix-users wrote: master.cf: smtp .. .. .. .. .. .. smtp -o inet_protocols=ipv6 What to do if my smtp line ends with postscreen? That's "smtp inet", while the delivery agent is "smtp unix ...", see my post for an unabbreviated example. You're right. I've to read better. I have a new glas fiber internet connection with a new ipv4 address which has a very bad reputation. That's why I want to use ipv6. I take it you know that many (even large service provider) domains don't have IPv6 MX hosts, so using *only* IPv6 you'll find that you won't be able to reach many potential recipients. I know! I've to make de reputation better and delist the ip address on many blacklist servers. Thank you! Gr., Jack Raats ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
[pfx] Re: Sending email via ipv4
Op 24-03-2024 om 19:42 schreef Wietse Venema via Postfix-users: Jack Raats via Postfix-users: main.cf: inet_protocols=ipv4,ipv6 as well as appropriate DNS MX and A records. I have inet_protocols=all I want to send email via ipv6 only. master.cf: smtp .. .. .. .. .. .. smtp -o inet_protocols=ipv6 What to do if my smtp line ends with postscreen? I have a new glas fiber internet connection with a new ipv4 address which has a very bad reputation. That's why I want to use ipv6. Thanks for your wonderfull email server! Gr., Jack Raats ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
[pfx] Sending email via ipv4
Hi, Can any help me. I want to recieve email via ipv4 and ipv6. I want to send email via ipv6 only. I tried using smtp_address_preference = ipv6, but that didn't work. Gr., Jack Raats ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
[pfx] Re: No messages from freebsd.org
Oeepppss You're absolutely right. I am ashamed that I didn't think that DANE was perhaps the problem Short term solution was to delete the TLSA record from the DNS. After deleting the TLSA record the mails are getting in. Thank you! Gr. Jack Raats Op 23-11-2023 om 05:28 schreef Viktor Dukhovni via Postfix-users: On Thu, Nov 23, 2023 at 04:32:02AM +0100, Jack Raats via Postfix-users wrote: Can anyone help me to address the following problem. I'm receiving messages from the dovecot and postfix mailinglist. I can get mail from gmail etc. but not from the freebsd mailing lists. I get the following in maillog Nov 23 04:23:43 nl postfix/smtpd[2135]: connect from mx2.freebsd.org[2610:1c1:1:606c::19:2] Nov 23 04:23:44 nl postfix/smtpd[2135]: Anonymous TLS connection established from mx2.freebsd.org[2610:1c1:1:606c::19:2]: TLSv1.3 with cipher TLS_AES_256_GCM> Nov 23 04:23:44 nl postfix/smtpd[2135]: disconnect from mx2.freebsd.org[2610:1c1:1:606c::19:2] ehlo=1 starttls=1 quit=1 commands=3 Not surprising, given: https://stats.dnssec-tools.org/explore/?netnl.net I sent a note on Nov 1th to: Subject: netnl.net: SMTP server DNS (DANE TLSA record) issue Perhaps that's wasn't a good choice of contact address. I can only try... I really don't understand users who deploy DANE (or any other security technology) without implementing monitoring. Magical thinking that nothing could possibly go wrong? ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
[pfx] No messages from freebsd.org
Can anyone help me to address the following problem. I'm receiving messages from the dovecot and postfix mailinglist. I can get mail from gmail etc. but not from the freebsd mailing lists. I get the following in maillog Nov 23 04:23:43 nl postfix/smtpd[2135]: connect from mx2.freebsd.org[2610:1c1:1:606c::19:2] Nov 23 04:23:44 nl postfix/smtpd[2135]: Anonymous TLS connection established from mx2.freebsd.org[2610:1c1:1:606c::19:2]: TLSv1.3 with cipher TLS_AES_256_GCM> Nov 23 04:23:44 nl postfix/smtpd[2135]: disconnect from mx2.freebsd.org[2610:1c1:1:606c::19:2] ehlo=1 starttls=1 quit=1 commands=3 Nov 23 04:23:44 nl postfix/smtpd[2135]: connect from mx2.freebsd.org[96.47.72.81] Nov 23 04:23:44 nl postfix/smtpd[2135]: Anonymous TLS connection established from mx2.freebsd.org[96.47.72.81]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (2> Nov 23 04:23:44 nl postfix/smtpd[2135]: disconnect from mx2.freebsd.org[96.47.72.81] ehlo=1 starttls=1 quit=1 commands=3 Is the problem at my mailserver or at the freebsd mailserver?? ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
[pfx] Backup outgoing mail from one user
One of my users (my wife) lost her sent mail folder on her pc. She asked me if I had a backup of all het sent mail on my mail server, which I donn't. I have a backup of all her ingoing mail using procmail, but how can I make a backup of all her outgoing mail? Thanks Jack ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
