>I get a lot of fake bounces that look like they come from my own MTA
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)
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This is a good use case for SPF. If your mail server has an SPF record, you can reliably filter out real bounces from forgeries. (I read all my bounces, and would much rather have you bounce my mail than stick it in a spam folder.)
Some actual data presented anecdotally
Posted Jul 13, 2011 0:04 UTC (Wed) by mjg59 (subscriber, #23239)
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You can do that without SPF - BATV solves this problem without breaking things like forwarding.