search for: adarwash1

...or your maui host: dig @ns.hosteurope.com maui.jaa.org.uk you get: maui.jaa.org.uk. 14400 IN A 213.152.52.233 An rDNS lookup on that IPnumber returns: 233.52.152.213.in-addr.arpa. 56246 IN PTR jaa.org.uk. while the rDNS on 148.197.29.5 returns: 5.29.197.148.in-addr.arpa. 50161 IN PTR adarwash1.ee.port.ac.uk which matches the forward lookup: adarwash1.ee.port.ac.uk. 86400 IN A 148.197.29.5 So, the outside world has a rather different view of what your ipnumber(s) are than you seem to be getting/using internally.

...will cyrus not listen on 148.197.29.5 ? > > John My dns lookup (against either of the hosteurope.com nameservers listed for jaa.org.uk) is showing the following for the maui FQDN. maui.jaa.org.uk. 14400 IN A 213.152.52.233 and I'm getting: 5.29.197.148.in-addr.arpa. 80184 IN PTR adarwash1.ee.port.ac.uk for the rDNS of 148.197.29.5. As you can see from the netstat output, cyrus is listening (on all interfaces), but only on ipv6. It doesn't appear to be listening on any interface on ipv4. You do have portreserve "holding" the IMAP ipv4 ports. It's possible that it&...