North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Hotmail-- Again??
On Wed, 13 Apr 2005 07:18:41 +0530 Suresh Ramasubramanian <[email protected]> wrote: On 4/12/05, Matthew Black <[email protected]> wrote:2. After given a numeric SMTP error response code between 500 and 599 You missed the point of my message. I am fully aware that Outlook is an MUA and Hotmail does not let their free customers use MUAs. Paid Hotmail customers are permitted to use their own MUA. The point of my original post is that Microsoft owns an on-line e-mail portal that follows RFC-[2]821 (or is it [2]822) by requiring connecting systems to obey the 5xx response codes as permanent failures and never attempt redelivery of the errant message. Microsoft Outlook and Exchange do NOT understand that 5xx error codes are permanent and will attempt redelivery, indefintely in the case of Outlook. matthew black california state university, long beach
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