My home DSL has been down for over 48 hours and it appears that it will be
down for several more days. (I spare you the gory details). I am concerned
about losing mail coming into various domains at that site.
That RH 7.3 machine runs mail/web/primary DNS for those domains.
I have modified the secondary DNS records for those domains (on a machine
at my office - also on DSL) with an higher cost MX record pointing to a
machine at the office also running RH 7.3 and sendmail, which I assume will
pick up and queue the mail. The DNS TTLs are reasonably short, fortunately.
I've done this following O'Reilly/Sendmail book 2nd edition, but its not
always crystal clear if you don't already understand it! Is there anything
else I have to do on the backup machine (pointed to by the new MX records),
particularly is there anything I have to do to its sendmail config files?
Any other pointers or "gotcha"s to this whole process?
Dick
