On Tue, 2007-03-06 at 15:55 +0000, Steve Searle wrote: > Around 03:51pm on Tuesday, March 06, 2007 (UK time), Aaron Konstam scrawled: > > > > Incidentally, I also had to open a peephole in my ADSL modem, > > > and add a rule to shorewall to allow email in. > > It is not dangerous at all if you have proper firewalls, The access > > database in /etc/mail > > Is this true. I understood the firewall has to be open to allow > sendmail to accept email from the internet, and that could be email for > the domain, or email for other domains, and the firewall can't > differentiate. Which is why sendmail needs to be configured to not > accept email for domains other than those that are specifically > intended. > > Steve The firewall is set to open the ports you want to open and close the ones you want to close. The access database controls the open relay problem. -- Aaron Konstam <akonstam@xxxxxxxxxxxxx>
