Am 06.04.2012 20:12, schrieb Heinz Diehl: > On 06.04.2012, Joe Zeff wrote: > >> I have, a few times, considered setting up a mailserver of my own for my >> domain so that even when I was away from home all mail went through it. >> Every time I have, I've decided against it for exactly that reason. If more >> people did the same, we'd not have as many open relays spamming the world. > > Setting up a mailserver is not a real problem, all the "big" > mailservers come with good documentation. However, they are complex > beasts, and "time" seems to be the real important factor. Getting > blacklisted because you build an open relay is stupid, but nothing > changes practice more and faster than adverse anecdote :-) yes, time is the problem for most people i built my first production mailserver with port 25 open on WAN in 2009, started the implentation of a web-backend and depending postfix/dovecot/dbmail-configs on a blank machine and after two months i was finally sure that this all is clean and secure enough to give it a public IP and even after two months working day and night there were enough troubles with clients relying on auth-mechs not provided in the firt place after migrate some hundret mail accounts with ariund 200.000 messages this time so in my opinion if someone thinks "hey, i read some howtos and in two weeks my server is production ready" he makes a terrible mistake this belongs to all types of servers, but no other type can produce so much damage as a mailserver ina very short time (excption: a webserver with php poorly configured and with danergous scripts which can be used to bypass attacks on 3rd oarty servers and generate spam via unsafe forms) if someone has not the time and willing to learn how to deal with security and maintenance (not only for the first setup) he should hire professionals who knows how to do so
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