>domain.dnsalias.com is one of that services that have a client in the
>user machine, that when detects an IP address change, it sends a
>notification of change, so domain.dnsalias.com will change somewhat fast
>(like 30 minutes later) to the new IP of the machine
>
>My server catchs all mail to that domain, but then in the retry time, it
>tries ONLY the IP in etc/hosts, when I think that it should be FIRST
>etc/hosts, & if MC connect fail, try the MX in DNS
no, it finds the hostname in hosts file, so no need to look further,
plus Imail looks in host only for what BIND calls "A records" not for
MX records.
>Imail people: Is there any possibility for Imail to work like this?
>Len: Can you tell me if postfix works the same way or it could deliver
>right?
postfix has a table or map file called transport.map that is more
sophisticated than hosts file operation
this kind of line:
ETRNdomain.ar smtp:[ip.ad.re.ss]
works like a hosts file, where SMTP is the type protocol to use to
transport the msg to the "next hop".
This kind of line:
ETRNdomain.ar smtp:hostname
... will have postfix query for the MX record of hostname, while
adding [] like this:
ETRNdomain.ar smtp:[hostname]
... will have postfix query for A record of hostname.
Len
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