Am 26.09.2014 um 18:18 schrieb Klaipedaville on Google: >> it is true and besides the german legal letter below you violate a second >> law at the same time - that is why you have to run a spamfilter *before >> queue* and sa-milter exists - in case you reject a message >> the sending server is responsible for a bounce >> >> in case you accept and silently drop it you have a unacceptable >> configuration - independent of laws - in case of a important and time >> critical mail i need to know it was rejected and so can call the person by >> phone or try to >remove something which triggered a false positive >> ____________________________________________________ >> >> there are two important rules for mail: >> >> a) if you accept it you have to deliver it >> b) if you can't deliver it you must not accept it >> >> if you follow b) you don't become a backscatter >> >> http://www.postfix.org/MILTER_README.html > > Yep, that's correct about point b). Plus, I also personally agree that > rejecting is better, than having it silently discarded. Good thing is that I > do not reside in Germany so I am safe on that > > In fact, postfix before-queue content filter has limits in the amount of mail > that a site can handle: http://www.postfix.org/SMTPD_PROXY_README.html > therefore legal part of this in Germany limits all German people on resources > as every single person is forced to run before-queue filters which in my > opinion has its own disadvantages on top of everything else and despite the > laws as well.
that's no problem because with RBL weighting and postscreen you reject 95% of the crap before it ever touchs smtpd or even the contentfilter that stats below are about a maillog starting with Sep 18 19:50:39 for some hundrest domains and currently 2000 valid RCPT, if the contentfilter has to handle most of your incoming flow you made a mistake by not reject earlier with "cheaper" methods ___________________________________________________ that part never touched the contentfilter Invalid User: 3074 Disallowed User: 2 Reject Postscreen: 148451 Reject Postfix: 6225 Blacklist: 144880 Pregreet: 5143 Protocol Error: 1607 Helo: 190 Sender Blocked: 200 Sender Invalid: 229 Sender Spoofed: 847 PTR Missing: 1347 PTR Generic: 319 ___________________________________________________ Connections: 185848 Delivered: 20293 Invalid User: 3074 Disallowed User: 2 Reject Postscreen: 148451 Reject Postfix: 6225 Reject Temporary: 507 Blacklist: 144880 Pregreet: 5143 Protocol Error: 1607 Spamfilter: 2297 Virus: 115 Helo: 190 Subject: 42 Attachment: 0 Sender Blocked: 200 Sender Invalid: 229 Sender Spoofed: 847 PTR Missing: 1347 PTR Generic: 319
signature.asc
Description: OpenPGP digital signature
