Jason Noble wrote, at 09/10/2008 08:51 AM: > It was my DNS. > I am using a black list from here: > http://pgl.yoyo.org/adservers/ > to block ad-servers at the dns level. > > I'll have to remember this next time I have weird mail issues.
Your mail server should use a reliable, honest DNS server. Set up a separate DNS server if you want to block ad sites for your your LAN users. I do this, but I simply make the local DNS server authoritative for the offensive domains (or subdomains) and point them all to the same zone file, which has no A records defined. Why anyone would point these to 127.0.0.1 or any other IP address is beyond me.
