On 2008/01/02 21:22, Chris wrote: > I got a test box at home I'm trying to setup sendmail in. I bought a > domain and host a website on that box. I get dynamic IP from my ISP > which gets updated via DynDNS for the website. I added the MX for my > domain with Google and it's been working fine (I can send receive > mail). But I want to setup sendmail & friends (clamav, mimedefang, > spamd etc.) to get familiar with them. > > I understand that having a dynamic IP and not having a reverse DNS > working to mail.domain.com would put me in the block list pretty soon. > I am not considering hosting outside. > > Could sendmail's smarthost be the best option in this scenario? If > yes, should I point it to Google or my ISP? Is there any other option?
$ host -t txt gmail.com gmail.com descriptive text "v=spf1 redirect=_spf.google.com" $ host -t txt _spf.google.com _spf.google.com descriptive text "v=spf1 ip4:216.239.32.0/19 ip4:64.233.160.0/19 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:209.85.128.0/17 ip4:66.102.0.0/20 ip4:74.125.0.0/16 ?all" if you're sending from your gmail.com address through it, you'll probably have better luck using Google. otherwise, your ISP (it can be fiddly setting up SMTP auth).
