Hotmail-- Again??

Suresh Ramasubramanian ops.lists at gmail.com
Wed Apr 13 01:48:41 UTC 2005


On 4/12/05, Matthew Black <black at csulb.edu> wrote:
>     2. 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.
> 
> Microsoft Outlook doesn't follow this rule. Outlook perpetually retries
> sending messages which encounter an SMTP permanent error between
> 500 and 599. How interesting that their on-line e-mail service has
> rules that prevent use of the parent company's own products.  <8-)

Outlook is not an MTA and it is not going to connect to MSN/Hotmail's
servers to deliver mail.

And Hotmail is run by a rather different group of people than those
that code Outlook.

-- 
Suresh Ramasubramanian (ops.lists at gmail.com)



More information about the NANOG mailing list