Quoting Paul Johnson <baloo@ursine.dyndns.org>: [snip] > An MX is only needed if some other system is going to be handling the > mail bound for that one. > You can get away with this most of the time. However, the RFCs do require that you have an MX record and some mail servers are setup to not accept mail from servers/domains that do not have MX records as a anti-spam measure. If you are using dyndns.org, you can set a MX record. HTH, Jeffrey