On Sun, Jan 05, 2014 at 09:16:02AM -0500, Patrick Shanahan wrote: > * Richard Z <r...@linux-m68k.org> [01-05-14 08:57]: > [...] > > unless you try to do something like multiple email providers for one > > user which is very easy to do with anything but sendmail/postfix/exim. > > I have done this on all three and got tired, after every system upgrade > > some incompatible change breaks it and even the most basic smarthost > > configuration stops working, not to mention the multiple accounts which > > always required some configuration acrobatics. > > I have been doing this for *many* years with miniminal intervention across > many versions of linux, mostly SuSE/openSUSE w/o problems using > postfix/fetchmail/procmail/spamassassin. Postfix and/or most other mta's > also provide the use of rbl's to help minimize spam.
your or mine spam filter is not the problem. The problem is when you pipe email through a local postfix/exim MTA it will attach received headers with the domain name and IP, quite often a domain name and IPs that is not even valid. The mail than goes through the smarthost - and this combination easily looks suspicious to certain stupid spam filters of the destination provider. Because the problem is not with your/mine system but the stupidity of the spam filter on the other end it is not easy to fix. It may be that I was hit a bit more often by stupid spam filters because I am using linux-m68k.org domain as from addr but routing mail through gmail.. I will never know because such providers never answer questions, they just silently discarded my mail. > In November last I had to replace my server box witch intailed a four > version upgrade/jump and all I really did to the mail system was clean up > /etc/postfix/main.cf and /etc/postfix/access of stale and mostly commented > out ancient text from prior *experiments*. > > [...] > > I would not touch sendmail/postfix/exim again unless I want to run a > > real public mail server. > > Somewhere you have encountered major weird problems or I have experienced > the "luck of a drunken Irishman" (which I may be). perhaps I was doing things at the wrong time, when I first messed with sendmail something as simple as smarthost support was an unusual thing to do. But the only easy solution that I can see to prevent the "suspicious MTA headers" problem is avoiding the local MTA hop. Richard --- Name and OpenPGP keys available from pgp key servers
