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 mes
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 d
