[RFE] - Resolving of SRV records

2020-07-29 Thread Henry Miller
Asking user to type in “_submission._tcp” seems like a poor workaround. This being Autodiscovery it’d be logical for Postfix to automagically derive SRV lookup address based on relayhost setting. “relayhost = example.com” is an obvious candidate for SRV autodiscovery if an MX lookup fails or if

Re: [RFE] - Resolving of SRV records

2020-07-29 Thread Bastian Blank
Hi Peter On Wed, Jul 29, 2020 at 02:46:55PM +1200, Peter wrote: > On 29/07/20 8:19 am, Jaroslaw Rafa wrote: > > Could anybody explain *why* using this record by Postfix is needed at all? > > As far as I understand, SRV records are meant to be use by mail *clients*, > > to > > simplify MUA configu

Re: [RFE] - Resolving of SRV records

2020-07-29 Thread Michael Ströder
On 7/29/20 9:53 AM, Bastian Blank wrote: > However, please describe how you would implement the requirements of RFC > 6125 section 6[2]? You can't use SRV records without support for useful > server authentication. Full ack. That's something most people overlook / ignore when naively asking for

Re: [RFE] - Resolving of SRV records

2020-07-29 Thread Tomas Korbar
Hi, I'm glad that so many of you stated your opinion. To be honest, i did not expect this feature to have any security implications. Before i post another version of patch i would like to answer to your questions and then summarize current opinion how this should be done, so nobody is wasting their

Re: [RFE] - Resolving of SRV records

2020-07-29 Thread Wietse Venema
Henry Miller: > Asking user to type in ?_submission._tcp? seems like a poor > workaround. This being Autodiscovery it?d be logical for Postfix > to automagically derive SRV lookup address based on relayhost > setting. > > ?relayhost = example.com? is an obvious candidate for SRV autodiscovery > if

Re: [RFE] - Resolving of SRV records

2020-07-29 Thread Wietse Venema
Tomas Korbar: > Finally, > This feature is useful for container deployment as you can have unified > configuration for multiple images. Well, I think I solved THAT problem 20 years ago, with: relayhost = $mydomain which nowadays might look like relayhost = $mydomain:587 or relayho

Re: [RFE] - Resolving of SRV records

2020-07-29 Thread Jerry
On Wed, 29 Jul 2020 11:00:52 -0400 (EDT), Wietse Venema stated: >Tomas Korbar: >> Finally, >> This feature is useful for container deployment as you can have >> unified configuration for multiple images. > >Well, I think I solved THAT problem 20 years ago, with: > >relayhost = $mydomain > >wh

Re: Using provider SMTP (Gmail)

2020-07-29 Thread 황병희
> When I send an email it is received with "From: " equal to Gmail account > (From: xx...@gmail.com) instead of my > personnal email (From: xx...@mehl-family.fr). That is easy. Just use Google Apps (currently G Suit) ;;; Sincerely, -- ^고맙습니다 _救濟蒼生_ 감사합니다_^))//