Scott Silva wrote: > on 3-27-2008 12:04 PM Giulio Troccoli spake the following: >> I have just installed CentOS 5.1 on my home server and I am trying to >> set a mail server. >> >> I have diligently followed the instructions on the Wiki - How To on >> the CentOS website (http://wiki.centos.org/HowTos/postfix). However I >> cannot send internal email (I haven't yet tried externally). >> >> Do you have any suggestions on what to check? To test it I used two >> normail user: giulio and federica. I logged in as federica and sent >> an email to giulio with the mail programme. Is this correct (i.e. >> using the mail programme)? >> >> There is one thing that I don't quite understand from the >> instructions. In section 3.1 it's suggested to set >> >> mynetworks = 192.168.0.0/24, 127.0.0.0/8 >> >> in the /etc/postfix/main.cf file. My home network however is >> 192.168.69.0 and actually the IP assigned to any computers in the >> networks start from 192.168.69.20. So I changed mynetworks to >> 192.168.69.0/24 and also 192.168.69.19/30 (as my server IP address is >> actully 192.168.69.25). I don't think this is the cause of my problem >> anyway, because it didn't work even with the value suggested by the >> Wiki page. >> > 192.168.69.0/24 should be the proper setting here. 192.168.69.19/30 is > not a proper network. Are you absolutely sure that you did every step > in the howto? > > I used mail to send a test message and it worked fine ( after I read > the man page -- I haven't used mail to send a message for 20 years or > more!). > > There must be other errors in your postfix config. > > When you start postfix, does it throw any errors in the logs? > > The 192.168.69.19/30 was just a test after 192.168.0.0/24 and 192.168.19.0/24 both failed (i.e. I could send an internal email). To make clearer this is what I have in my main.cf file mynetworks = 192.168.69.0/24, 127.0.0.0/8 Starting Postfix does not throw any errors. I can download emails using POP3 with postfix and davecot, can't I? I don't have to use IMAP, right? Giulio