On Tuesday 23 November 2010 16:58:34 mouss wrote: > Le 22/11/2010 08:55, J. Roeleveld a écrit : > > [snip] > > > > There is only 1 email address causing issues, eg. am only rewriting that > > specific one. > > if so, then simply use > > u...@lists_example_org u...@lists-example.org
Already being done this way. > >> better reject the address and let the sender fix his ratware... > > > > That is the default behaviour, unfortunately, I am using fetchmail to get > > the emails out of a mailbox elsewhere and injecting that into postfix. > > with fetchmail, it is a good practice not send bounces (because that > would cause backscatter). True, but this is the only one it's trying to send bounce-mails for :) > Maybe you can tell cyrus to accept malformed sender adresses? Only option I did find was to manually patch cyrus, which I find not worth the effort for just one situation. Rewriting the address works and is far easier to maintain. The problem is is that underscores in hostnames are violating the standards and should actually be blocked. Because not all applications follow the standards properly and other do, situations like this occur. -- Joost
