Paweł Leśniak a écrit : > W dniu 2009-03-05 06:30, Mihira Fernando pisze: >> Have you ever tried sending an e-greeting to someone via >> 123greeting.com or >> some other similar site ? >> > You're definitely right - I didn't use that one before. > Look what I get in logs: > Mar 5 09:41:50 lola postfix/smtpd[20278]: warning: 72.233.20.39: > address not listed for hostname www.123greetings.com > So they are surely doing something nasty... > > Anyways: > Mar 5 09:41:52 lola postgrey[22558]: action=greylist, reason=new, > client_name=unknown, client_address=72.233.20.54, > sender=eca...@123greetings.com, recipient=pa...@lesniakowie.com > > So, I have really no idea why are you all advocating that some services > use MY EMAIL ADDRESS as ENVELOPE SENDER.
I don't know if such services till do that, but they used to. it is however probable that major ones have stopped this, because they have been made aware of the problem that it causes. and also because of SPF, even if it is not widely used. > It's something what should never be done. there are two different things: - because of spam, such practice is not a good idea - but if there were never any spam, it would be ok the discussion continued because you stated that this behaviour "should never happen". but many people don't like adding unnecessary constraints to protocols. so even if we don't like the practice under discussion, we don't like it because of the spam problem, not because "it should never happen". In particular, we may add exceptions to accept some such mail, and in any case, we don't blacklist the servers that use this practice. because they may be doing something we don't like much, but they are not misconfigured in a strict sense. > [snip]
