Caution! Don't attempt the Postini to Google Apps transition
LarrySheldon at cox.net
Sun Sep 8 21:49:08 UTC 2013
On 9/8/2013 2:38 PM, Anurag Bhatia wrote:
> Hi Matthew
> Interesting experience.
>> first into a black hole, and then bouncing with permanent failures.
> What you mean by permanent failures? Can you share error you saw in bounce
> RFC 2505 Anti-Spam Recommendations February 1999
> 1.6. SMTP Return Codes
> SMTP has several classes of Return Codes, see  for a discussion:
> o 5xx
> is a Permanent Negative Completion reply (Fatal Error) and
> results in the mail transfer being terminated and the mail
> returned to sender.
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