By default, sendmail only listens on 127.0.0.1 Have a look at your /etc/mail/sendmail.mc and look for this section towards the bottom: dnl # dnl # The following causes sendmail to additionally listen to port 587 for dnl # mail from MUAs that authenticate. Roaming users who can't reach their dnl # preferred sendmail daemon due to port 25 being blocked or redirected find dnl # this useful. dnl # DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl Make the DAEMON_OPTIONS look like mine above, save your changes, run 'make' while in /etc/mail Then, restart sendmail. Mike ________________________________ From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Sam Drinkard Sent: Friday, November 04, 2005 3:03 PM To: CentOS at centos.org Subject: [CentOS] Sendmail I know this is a "generic" question, but fully CentOS related. I attempted to set up i386 v.4.1 on my primary computer at the co-located site, and thought I had everything squared away till I discovered the machine was refusing mail connections. AFIK, I had no firewall or other objects blocking port 25. It has been my experience that with most arch's and versions where sendmail is the stock mta, they always seem to work out of the box with no tweaking at all. I have got to get this set up but will do it on a test machine rather than the production machine. Between that prblem and the changes between bind 8 and 9, I was dead in the water from the outset. Back online with the BSD machine for the time being. Any reason why mail connections would be refused ? (yes sendmail was running too) Thanks.. Sam