[pfx] Re: Postfix 3.7.x do not send message Delivery Status Notification of relayed email

2025-05-05 Thread Wietse Venema via Postfix-users
Josef Karliak: >Good afternoon, > >thanks for the answer. > >smtp1 and smtp2 are the servers in the same subnet (demil zone, > perimeter). Client is from local network > >In the mail log of smtp2 is only difference (except different client > IP) that the DSN is generated. > >

[pfx] Re: Postfix 3.7.x do not send message Delivery Status Notification of relayed email

2025-05-05 Thread Wietse Venema via Postfix-users
Matus UHLAR - fantomas via Postfix-users: > >Josef Karliak via Postfix-users: > >>what could cause that Postfix do not send DSN of the mail that is > >> recieved over another server ? > > On 05.05.25 08:16, Wietse Venema via Postfix-users wrote: > >1) As specified in RFC 3461, the remote SMTP

[pfx] Re: Postfix 3.7.x do not send message Delivery Status Notification of relayed email

2025-05-05 Thread Matus UHLAR - fantomas via Postfix-users
Josef Karliak via Postfix-users: what could cause that Postfix do not send DSN of the mail that is recieved over another server ? On 05.05.25 08:16, Wietse Venema via Postfix-users wrote: 1) As specified in RFC 3461, the remote SMTP client may disable delivery status notifications with:

[pfx] Re: Postfix 3.7.x do not send message Delivery Status Notification of relayed email

2025-05-05 Thread Wietse Venema via Postfix-users
Josef Karliak via Postfix-users: >Good morning, > >what could cause that Postfix do not send DSN of the mail that is > recieved over another server ? 1) As specified in RFC 3461, the remote SMTP client may disable delivery status notifications with: RCPT TO: NOTIFY=none 2) The loca

[pfx] Postfix 3.7.x do not send message Delivery Status Notification of relayed email

2025-05-05 Thread Josef Karliak via Postfix-users
Good morning, what could cause that Postfix do not send DSN of the mail that is recieved over another server ? If I set a email client directly to the the server with Postfix, DSN is generated: No DSN : client->smtp1->smtp2 DSN : client->smtp2 Both smtp's IP is in "mynetworks" in