On Fri, 26 Sep 2008 07:23:06 -0500 Ron Johnson <ron.l.johnson@cox.net> wrote: > On 09/26/08 05:51, Frank Lanitz wrote: > > On Tue, 23 Sep 2008 02:03:50 +0300 > [snip] > >> From what I recall it's also necessary to tell postfix to use SASL > >> and where to look for those credentials: > >> > >> in main.cf: > >> > >> smtp_sasl_auth_enable = yes > >> smtp_sasl_password_maps = hash:/etc/postfix/sasl/sasl_passwd > >> > >> and 'postmap /etc/postfix/sasl/sasl_passwd' > > > > But this is AFAIK only needed if you use a smarthost with login > > data. For open relays it's not needed (but I'm not sure whether a > > open relay is a good idea in general) > > I think there's a third alternative: ISPs usually only allow "sent" > mail from IP addresses within their own assigned range of numbers. > > For example, I send mail via postfix-as-smarthost to my ISP, but > don't use sasl. Yes. I forget this possibility. You can do something similar with your local postfix so you only react on request of localhost e.g. Regards, Frank -- Frank Lanitz <frank@frank.uvena.de>
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