Chan Chung Hang Christopher wrote: > Rudi Ahlers wrote: > >> Can anyone, who has used both Postfix & Exim please share some experience >> with me? Which of these 2 did you prefer to use, and why? >> > > I have not used exim but I know someone who swears by it. It is highly > configurable and had stuff like sender based routing before postfix did. > > > >> cPanel uses Exim (and AFAIK, only Exim), VirtualMin seems to use Postfix by >> default and often times when a custom server is installed a client doesn't >> know which to use so we recommend Exim. But, what are the differences >> between these 2, from your experience, if you don't mind telling me? >> > > Exim is monolithic while postfix is not. Next up would be a comparison > in feature sets (lookup table should be the same - > mysql,pgsql,ldap,Berkerly DB) but is probably not worth it unless you > want to do make some really intricate ruleset. The last would probably > be the difference in behaviour and therefore in tuning. postfix being > non-monolithic might mean that it has more room for fine-tuning than exim. I've never found it particularly necessary to tune exim, out of the box with a basic configuration it handles itself very well and scales nicely even up to heavy loads. I've used it in 100k+ e-mails a day environments without any stability or performance problems. It's a rather popular mail server in the UK, possibly by nature of it's origins at Cambridge. I've not spent much time using postfix, but every time I have it's been relatively straightforward and intuitive as well. Always seems to perform well too :) I rather feel its a bit of a case of 6 of one, half a dozen of the other. Both tackle the same problem from slightly different angles, and both have achieved excellence in their own ways. There is a great introduction to configuring exim on this site: http://www.exim-new-users.co.uk Paul