On Saturday 23 June 2007, Firas Kraiem wrote: > This is not really an OBSD-specific question but since the machine I > plan to do this on is running OBSD, I figured out I would post here, > please don't throw pointing objects at me ;)
OK, I won't throw any mice, trackballs, tablets or other pointing objects at you. :-) If at all possible, get yourself a fixed IP address from your provider. Without a fixed IP address, you are looking at a world of headaches when it comes to serving email. The first problem you face is when it comes to sending mail. Large swaths of the IP addresses dynamically assigned by service providers end up on multiple RBL (block lists). This is mainly due to the countless compromised ms-windows systems spewing spam. If you get assigned an IP that's been added to the block lists, then you can't send mail. The work-around is to use your providers mail system as forwarding host. The next problem is your MX record (the DNS record that states where the mail server can be found for a domain). You do not have control of the "no-ip.org" domain, and they do have their own mail server (and MX record), so your idea of having "[EMAIL PROTECTED]" as your address is not going to work unless you can convince them to help you out with the DNS issues for mail. Another problem you'll face is DNS caching. Even if you set a short TTL (time to live) on your DNS records, other peoples DNS servers (or caches) may not honor your requested time-out, so they will have stale info about how to locate your mail server and fail to deliver mail to it (due to it's constantly changing IP address). You may be able to hack around these issues, but you can reasonably expect any hack will not be very reliable. kind regards, jcr
