Re: stop retransmitting failed delivery

2021-01-29 Thread Bill Cole

On 29 Jan 2021, at 6:45, Zsombor B wrote:


Hi,


Microsoft has this policy at 
https://postmaster.live.com/pm/policies.aspx


"After given a numeric SMTP error response code between 500 and 599 
(also known as a permanent non-delivery response), the sender must not 
attempt to retransmit that message to that recipient."


That's not Microsoft "policy," it's a necessary part of the SMTP 
protocol as defined in RFC821 and its successors.



How can this be done with postfix?


Postfix always behaves that way.


--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire


stop retransmitting failed delivery

2021-01-29 Thread Zsombor B

Hi,


Microsoft has this policy at https://postmaster.live.com/pm/policies.aspx

"After given a numeric SMTP error response code between 500 and 599  
(also known as a permanent non-delivery response), the sender must not  
attempt to retransmit that message to that recipient."


How can this be done with postfix?


Thank you,
Zsombor