At 11:34 27-08-2004, Markus Stumpf wrote:
A while ago there was a long and emotional discussion on the qmail list
about whether a 5xx should be treated as permanent for the message or
Would it be a good idea/is there any interest in having a kinda BCP
document to get these clarified?
It would be a good idea to clarify how 5xx codes should be
treated. Content-filtering gateways (for antispam or antivirus) make the
issue more confusing as they don't always return the correct status
codes. A BCP could clarify which codes to use and when to use them.