Jumping Mouse a écrit : > Hello everyone, > > I am using postfix 2.5.4 with amavisd-new, courier imap, clamd, > spamassasin, maildrop on Ubuntu 6.06.2 LTS server which I inherited. > > I have been struggling alone to try to resolve two issues and hope that > i can get some help here.
when you have completely unrelated issues, it is better to send two different posts. otherwise, people who might want to answer one question only may be discouraged. (and it is also better for the archives). so I am spli > > Issue 1. > > Many of my users have been encountering smtp time outs and delays (most > are using thunderbird latest version) . Most of the time smtp is very > responsive but at times there are these delays of 10-30 seconds and > sometimes the connection times out. delays occur on both port 25 and 587. > [snip] > hard to tell, but a first bet is reverse DNS lookup. if the clients use a private IP space, make sure your DNS server answers for the corresponding reverse zone so that postfix gets an NXDOMAIN quickly, instead of waiting for dns queries to travel around the world... > > 2. spamc being invoked by maildrop? > > > [snip] > > I believe spamc is being invoked by maildrop, possibly from a prior > installation that used spamc/spamd but since I am now using amavisd-new > I don't think spamc should be invoked at all, but I may be wrong here. > Do I need to change anything in my maildroprc? > yes, if you use amavisd-new, then you don't need spamc/spamd. just remove the xfilter line from your maildroprc. > here is my maildroprc > > $ cat /etc/courier/maildroprc > logfile "/var/log/maildrop" > VERBOSE="5" > > > log "========" > xfilter "/usr/bin/spamc" tis here. > [snip]
