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LWN.net Weekly Edition for May 23, 2013
An "enum" for Python 3
An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
Some actual data presented anecdotally
Posted Jul 12, 2011 6:56 UTC (Tue) by anselm (subscriber, #2796)
So what alternative do you suggest?
Here in Germany, if you're handling mail on behalf of other people it is in many cases illegal to just throw stuff away that looks like spam. So you need to either shove suspicious mail into a »spam« folder which the recipients usually look at only sporadically or not at all , or not accept it at all in the first place, by sending error codes during the SMTP dialogue. This applies not only if you are an ISP, but also to many companies, universities, etc.
People will need to figure out how to read their MTAs' error messages. Otherwise, how are they going to deal with mistyped addresses, full recipient mailboxes, etc. all of which can prevent mail from being delivered even in the absence of spam filtering and backscatter. Also, I personally have been a mail admin for 20 years or so, and I have never to my recollection seen a convincing fake error message from my own MTA.
Posted Jul 12, 2011 14:04 UTC (Tue) by nye (guest, #51576)
Presumably though if you send a message, and shortly afterwards the same message comes back to you with a note saying that it couldn't be delivered to the address you specified, it's not too hard to differentiate that from fake bounces to messages you clearly never sent.
Anyway in practice people obviously do notice bounces, as they generally manage to do just fine in cases where they've typed the address in wrong, for example.
Posted Jul 12, 2011 23:09 UTC (Tue) by dmarti (subscriber, #11625)
Posted Jul 13, 2011 0:04 UTC (Wed) by mjg59 (subscriber, #23239)
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