Re: Question on DKIM signature

2021-08-16 Thread Ken N
Raf Thank you for providing the details. That make things clear. Regards. On 2021/8/16 6:26 下午, raf wrote: On Mon, Aug 16, 2021 at 05:21:15PM +0800, Ken N wrote: I was reading this blog posting: https://www.alexblackie.com/articles/email-authenticity-dkim-spf-dmarc/ But I am confused

Question on DKIM signature

2021-08-16 Thread Ken N
I was reading this blog posting: https://www.alexblackie.com/articles/email-authenticity-dkim-spf-dmarc/ But I am confused that, what content should DKIM signature for? The message body or headers? what headers should be signed? Thank you.

Re: How to force remote deliver agent to send messages via SSL only

2021-08-15 Thread Ken N
does ubuntu linux have the keystone chain management? thanks. On 2021/8/16 2:03 上午, Ralph Seichter wrote: One can import self-signed certs and/or certificate authority data directly into TB's own keystore, but importing into the OS keystore (e.g. the system keychain for macOS) is usually more

Re: will this break DMARC?

2021-08-13 Thread Ken N
). That renders DKIM signatures invalid. Perhaps the dovecot list does that. It doesn't seem to, looking at the archives. -- Ken N https://blog.hoxblue.com/

Re: will this break DMARC?

2021-08-13 Thread Ken N
nothing else other than adding headers along the way, then it'll probably pass a DMARC check for mail.ru. Otherwise, it won't. Having said all that, what gmail does with it upon arrival is entirely up to gmail.:-) -- Ken N https://lrblogs.com/

delivery rules question

2021-08-13 Thread Ken N
.example.com. Messages for use...@example.us will go to mx-2.example.com. Thank you. -- Ken N https://lrblogs.com/

Re: will this break DMARC?

2021-08-13 Thread Ken N
thank you very much @raf. I have got your idea. On 2021/8/13 1:03 下午, raf wrote: On Fri, Aug 13, 2021 at 10:44:31AM +0800, Ken N wrote: I sent an email from mail.ru to pobox.com, pobox forwarded it to gmail. This is DMARC setting of mail.ru: _dmarc.mail.ru. 164 IN TXT &q

Re: will this break DMARC?

2021-08-12 Thread Ken N
those details to be able to evaluate. -- Ken N https://lrblogs.com/

will this break DMARC?

2021-08-12 Thread Ken N
forwarded email from pobox, will it break DMARC? since the message header showing sender is x...@mail.ru, but the SMTP talking IP is pobox's IP address. Thank you. -- Ken N https://lrblogs.com/