[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-10 Thread Ken Biggs via Postfix-users
e. I like having my own server and managing the install from the operating system up, so maybe I just have to live with some spam filtering of our outgoing email. > On May 10, 2025, at 2:29 PM, Wietse Venema via Postfix-users > wrote: > > Matus UHLAR - fantomas via Postfix-use

[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-10 Thread Ken Biggs via Postfix-users
So continuing the saga ... digging into /etc/postfix/header_checks I found a revision I made back in January to try to keep our outgoing email from having headers with the IP address of the email client that sent the email to the server and maybe keep Gmail from marking our outgoing email as SPA

[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-10 Thread Ken Biggs via Postfix-users
Woo hoo! I think I found the issue! I'm guessing this is probably an obvious thing, but I went line by line through my main.cf and found: mime_header_checks = regexp:/etc/postfix/header_checks header_checks = regexp:/etc/postfix/header_checks Not sure when I added those (it's been quite a whil

[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-09 Thread Ken Biggs via Postfix-users
HI Nick, I had cut and pasted from the "Raw Source" view in mac Mail, but double checked in the spool file and those are the headers received in that order. Thanks, Ken > On May 9, 2025, at 7:27 PM, Nick Tait via Postfix-users > wrote: > > On 10/05/2025 08:23, Ken B

[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-09 Thread Ken Biggs via Postfix-users
28d-- A lot (but not all) of the failed DKIM validation emails are from mailing lists. -Ken > On May 9, 2025, at 9:18 AM, Matus UHLAR - fantomas via Postfix-users > wrote: > > On 09.05.25 08:14, Ken Biggs via Postfix-users wrote: >> Looking at the maillog, I notice policyd-spf

[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-09 Thread Ken Biggs via Postfix-users
025-05-09 16:18: >> On 09.05.25 08:14, Ken Biggs via Postfix-users wrote: >>> Looking at the maillog, I notice policyd-spf is running before opendkim. >>> Could that be modifying the email before dkim validation? >> it should not. >> I use pyspf-milter which is

[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-09 Thread Ken Biggs via Postfix-users
> If OP uses content filter in front of the mailserver, changing spam filtering > will not fix the issue. > > Dan has already recommended checking DKIM in SpamAssassin to see if it helps. > >> On Fri, 9 May 2025, 09:30 Matus UHLAR - fantomas via Postfix-users, < >> pos

[pfx] Re: Incoming OpenDKIM signature verification failing

2025-05-09 Thread Ken Biggs via Postfix-users
Looking at the maillog, I notice policyd-spf is running before opendkim. Could that be modifying the email before dkim validation? > On May 9, 2025, at 8:04 AM, Ken Biggs via Postfix-users > wrote: > > I'm running spamass-milter. > /etc/mail/spamassassin/v312.pre al

[pfx] Re: SSL cert authority, letsencrypt error

2025-05-08 Thread Ken Biggs via Postfix-users
You will want the domain certificate first, then the certificate authority bundle in a pem file. > On May 8, 2025, at 6:08 PM, Dan Mahoney via Postfix-users > wrote: > > There’s only one certificate in your chain, you need to send the intermediate > cert as well. > > The cert you’re signing

[pfx] Incoming OpenDKIM signature verification failing

2025-05-08 Thread Ken Biggs via Postfix-users
OpenDKIM is failing signature verification on most incoming emails. Out of 1,146 incoming emails, 173 have been successfully verified and 973 have "bad signature data". The failing emails include email from google, amazon, sailthru, and many other reasonably technically capable firms that I w